The DOI matches its Crossref record; 101 of the 101 references it cites were found in a registry or an index; none of the 13 sources its claims cite is checked for support yet.
Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis
Open accessAbstract
BACKGROUND: Cardiac autonomic neuropathy in type 2 dibetes mellitus (T2DM) patients is frequent and associated with high cardiovascular mortality. Heart rate variability (HRV) is the gold standard to measure cardiac autonomic neuropathy. We aimed to conduct a systematic review and meta-analysis to evaluate the impact of T2DM on HRV parameters. METHODS: The PubMed, Cochrane Library, Embase and Science Direct databases were searched on 1st October 2017 using the keywords "diabetes" AND ("heart rate variability" OR "HRV"). Included articles had to report HRV parameters in T2DM patients and healthy controls measured during 24 hours with a Holter-electrocardiogram. Measurements of HRV retieved were: RR-intervals (or Normal to Normal intervals-NN), standard deviation of RR intervals (SDNN), percetange of adjacent NN intervals differing by more than 50 milliseconds (pNN50), square root of the mean squared difference of successive RR intervals (RMSSD), total power, Low Frequency (LF), High Frequency (HF) and LF/HF ratio, as per Task Force recommendations. RESULTS: We included twenty-five case-control studies with 2,932 patients: 1,356 with T2DM and 1,576 healthy controls. T2DM patients had significantly (P<0.01) lower RR-intervals (effect size = -0.61; 95%CI -1.21 to -0.01), lower SDNN (-0.65; -0.83 to -0.47), lower RMSSD (-0.92; -1.37 to -0.47), lower pNN50 (-0.46; -0.84 to -0.09), lower total power (-1.52; -2.13 to -0.91), lower LF (-1.08; -1.46 to -0.69]), and lower HF (-0.79; -1.09 to -0.50). LF/HF did not differ between groups. Levels of blood glucose and HbA1c were associated with several HRV parameters, as well as Time from diagnosis of T2DM. CONCLUSIONS: T2DM was associated with an overall decrease in the HRV of T2DM patients. Both sympathetic and parasympathetic activity were decreased, which can be explained by the deleterious effects of altered glucose metabolism on HRV, leading to cardiac autonomic neuropathy.
Overview
AI snapshot
Written from the paper’s full text.
TL;DR
This systematic review and meta-analysis found that type 2 diabetes mellitus (T2DM) is associated with an overall decrease in heart rate variability (HRV), with both sympathetic and parasympathetic activity reduced. The authors attribute this to deleterious effects of altered glucose metabolism leading to cardiac autonomic neuropathy.
Key findings
Twenty-five case-control studies with 2,932 patients (1,356 T2DM, 1,576 healthy controls) showed significantly lower HRV in T2DM for RR intervals (effect size = –0.61; 95%CI –1.21 to –0.01), SDNN (–0.65; –0.83 to –0.47), RMSSD (–0.92; –1.37 to –0.47), pNN50 (–0.46; –0.84 to –0.09), total power (–1.52; –2.13 to –0.91), LF (–1.08; –1.46 to –0.69), and HF (–0.79; –1.09 to –0.50). LF/HF did not differ between groups (effect size = 0.02; 95%CI –0.38 to 0.43; P = 0.914). Meta-regressions found age and male gender associated with decreased LF and HF; blood glucose and total cholesterol associated with increased LF and HF; higher HbA1c associated with shorter RR intervals; and time from T2DM diagnosis linked with higher SDNN and lower total power.
Methods
Systematic review and meta-analysis of case-control studies reporting 24-hour Holter-electrocardiogram HRV parameters in T2DM patients and healthy controls, following Task Force recommendations. Databases searched were PubMed, Cochrane Library, Embase, and Science Direct (search date reported as 1 October 2017; text also states between 30 October 2015 and 1 October 2017). Random-effects meta-analyses (DerSimonian and Laird) calculated standardised mean differences, with heterogeneity assessed by I² and meta-regressions for clinically relevant variables; study quality was assessed with STROBE and CONSORT.
Limitations
The paper states that meta-analyses inherit limitations of included studies and are subject to selection bias; included studies varied in quality, most were cross-sectional, measurement conditions differed, and inclusion criteria were not identical. The paper also states that control health status was not detailed in all studies, some studies were monocentric, the final number of patients was not very high, and missing or declarative data were potential biases. Evident from the text: heterogeneity was significant for all meta-analyses (e.g., I² = 91.6% for RR intervals, 94.0% for RMSSD, 93.5% for total power), and many variables (HbA1c, BMI, blood pressure, insulin, HOMA-IR, neuropathy scores) were missing or unreported across studies, limiting meta-regression analyses.
Model-written summary. Check it against the paper before relying on it.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
0 of 13 cited sources checked · 0 supported · 0 flagged
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower LF (–1.08; –1.46 to –0.69])”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower LF (effect size = –1.08; 95%CI –1.46 to –0.69; p < 0.001; I2 = 91.3%) (Fig 7) [42,45,47–54,57,63,65,66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Blood glucose levels were also significantly associated with an increase in RMSSD (coefficient = 4.2; 95%CI 1.7–6.6, P = 0.003) and with an increase in SDNN (coefficient = 24; 95%CI 17–30, P < 0.001).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Body mass index was associated with both an increase in LF (coefficient = 0.8; 95%CI 0.3–1.3, P = 0.003) and in HF (coefficient = 0.7; 95%CI 0.3–1.1, P = 0.005).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, both blood glucose levels and total cholesterol were associated with both an increase in LF (coefficient = 112; 95%CI 31–193, P = 0.015; coefficient = 1133; 95%CI 408–1858, P = 0.01; respectively) and in HF (coefficient = 34; 95%CI 6–63, P = 0.024; coefficient = 490; 95%CI 100–879, P = 0.023).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“LF/HF did not differ between groups.”
- Also stated in: § Meta–analyses of HRV values in T2DM · plain
“LF/HF did not differ between groups (effect size = 0.02; 95%CI –0.38 to 0.43; P = 0.914; I2 = 90.1%) (Fig 9) [42,44,46–48,50–54,57,65,66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · plain
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, both blood glucose levels and total cholesterol were associated with both an increase in LF (coefficient = 112; 95%CI 31–193, P = 0.015; coefficient = 1133; 95%CI 408–1858, P = 0.01; respectively) and in HF (coefficient = 34; 95%CI 6–63, P = 0.024; coefficient = 490; 95%CI 100–879, P = 0.023).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Age and male gender were associated with both a decrease in LF (coefficient = –0.7; 95%CI –1 to –0.4, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006, respectively) and a decrease in HF (coefficient = –0.6; 95%CI –0.9 to –0.3, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Body mass index was associated with both an increase in LF (coefficient = 0.8; 95%CI 0.3–1.3, P = 0.003) and in HF (coefficient = 0.7; 95%CI 0.3–1.1, P = 0.005).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Time from diagnosis of T2DM was linked with a higher level of SDNN (coefficient = 10; 95%CI 2.1–18, P = 0.018) and a lower level of total power (coefficient = –1214; 95%CI –2129 to –299, P = 0.021) (Fig 10).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Higher levels of HbA1c were associated with shorter RR intervals (coefficient = –383; 95%CI –756 to –8.8, P = 0.046).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Age and male gender were associated with both a decrease in LF (coefficient = –0.7; 95%CI –1 to –0.4, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006, respectively) and a decrease in HF (coefficient = –0.6; 95%CI –0.9 to –0.3, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower RMSSD (–0.92; –1.37 to –0.47)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower RMSSD (effect size = –0.92; 95%CI –1.37 to –0.47); P < 0.001; I2 = 94.0%) (Fig 4) [45,47,48,50,52,53,56–58,60–66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“T2DM patients had significantly (P<0.01) lower RR–intervals (effect size = –0.61; 95%CI –1.21 to –0.01)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“We noted strong evidence that T2DM patients had significantly lower RR intervals (effect size = –0.61; 95%CI –1.21 to –0.01, P = 0.01; I2 = 91.6%) (Fig 2) [45,46,48,52,54,57]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower HF (–0.79; –1.09 to –0.50)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower HF (effect size = –0.79; 95%CI –1.09 to –0.50; P < 0.001; I2 = 85.6%) (Fig 8) [42,44,45,47–54,57,63,65,66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, both blood glucose levels and total cholesterol were associated with both an increase in LF (coefficient = 112; 95%CI 31–193, P = 0.015; coefficient = 1133; 95%CI 408–1858, P = 0.01; respectively) and in HF (coefficient = 34; 95%CI 6–63, P = 0.024; coefficient = 490; 95%CI 100–879, P = 0.023).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“An increase in systolic blood pressure was linked with shorter RR intervals (coefficient = –380; 95%CI –703 to –53, P = 0.032) and a decrease in HF (coefficient = –3.1; 95%CI –6.2 to –0.02, P = 0.049).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Age and male gender were associated with both a decrease in LF (coefficient = –0.7; 95%CI –1 to –0.4, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006, respectively) and a decrease in HF (coefficient = –0.6; 95%CI –0.9 to –0.3, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Age and male gender were associated with both a decrease in LF (coefficient = –0.7; 95%CI –1 to –0.4, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006, respectively) and a decrease in HF (coefficient = –0.6; 95%CI –0.9 to –0.3, P < 0.001; and coefficient = –0.3; 95%CI –0.4 to –0.1, P = 0.006).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower pNN50 (–0.46; –0.84 to –0.09)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower pNN50 (effect size = –0.46; 95%CI –0.84 to –0.09; P = 0.001; I2 = 85.5%) (Fig 5) [42,48,50–53,58,60,62,65,66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Heterogeneity was significant (P < 0.001) for all meta–analyses.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–analyses of HRV values in T2DM
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Blood glucose levels were also significantly associated with an increase in RMSSD (coefficient = 4.2; 95%CI 1.7–6.6, P = 0.003) and with an increase in SDNN (coefficient = 24; 95%CI 17–30, P < 0.001).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, both blood glucose levels and total cholesterol were associated with both an increase in LF (coefficient = 112; 95%CI 31–193, P = 0.015; coefficient = 1133; 95%CI 408–1858, P = 0.01; respectively) and in HF (coefficient = 34; 95%CI 6–63, P = 0.024; coefficient = 490; 95%CI 100–879, P = 0.023).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Time from diagnosis of T2DM was linked with a higher level of SDNN (coefficient = 10; 95%CI 2.1–18, P = 0.018) and a lower level of total power (coefficient = –1214; 95%CI –2129 to –299, P = 0.021) (Fig 10).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“HDL cholesterol levels were associated with both an increase in SDNN (coefficient = 1251; 95%CI 292–2210, P = 0.017) and RMSSD (coefficient = 246; 95%CI 186–307, P < 0.001).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower SDNN (–0.65; –0.83 to –0.47)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower SDNN (effect size = –0.65; 95%CI –0.83 to –0.47; P < 0.001; I2 = 65.1%) (Fig 3) [42,45,47,48,50–53,55,57,58,60–66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“lower total power (–1.52; –2.13 to –0.91)”
- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
“lower total power (effect size = –1.52; 95%CI –2.13 to –0.91; P < 0.001; I2 = 93.5%) (Fig 6) [45–48,50,52,54,65,66]”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Results
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Meta–analyses of HRV values in T2DM · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“HDL cholesterol levels were associated with both an increase in SDNN (coefficient = 1251; 95%CI 292–2210, P = 0.017) and RMSSD (coefficient = 246; 95%CI 186–307, P < 0.001).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“An increase in systolic blood pressure was linked with shorter RR intervals (coefficient = –380; 95%CI –703 to –53, P = 0.032) and a decrease in HF (coefficient = –3.1; 95%CI –6.2 to –0.02, P = 0.049).”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–regressions
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, total cholesterol was associated with both an increase in LF and HF, and HDL was associated with an increase in SDNN and RMSSD.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Finally, in line with the literature, we demonstrated a decrease in both LF and HF with age [95] and the male gender [96].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
What the sources say
- Not checked yetcites [96] P Pavithran, 2008, Sex differences in short-term heart rate variability in patients with newly diagnosed essential hypertension, J Clin Hypertens Greenwich Conn source
Strength:boosted· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, total cholesterol was associated with both an increase in LF and HF, and HDL was associated with an increase in SDNN and RMSSD.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We demonstrated that all parameters measuring HRV were significantly decreased in T2DM compared with controls.”
- Also stated in: § Conclusion · boosted
“We reported strong evidence for an overall decrease in HRV in T2DM patients.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Conclusion · boosted
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We demonstrated that an increase in systolic blood pressure was linked with shorter RR intervals and a decrease in HF.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We demonstrated that an increase in systolic blood pressure was linked with shorter RR intervals and a decrease in HF.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, total cholesterol was associated with both an increase in LF and HF, and HDL was associated with an increase in SDNN and RMSSD.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, total cholesterol was associated with both an increase in LF and HF, and HDL was associated with an increase in SDNN and RMSSD.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Finally, in line with the literature, we demonstrated a decrease in both LF and HF with age [95] and the male gender [96].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
What the sources say
- Not checked yetcites [95] M Reardon, 1996, Changes in heart rate variability with age, Pacing Clin Electrophysiol PACE source
Strength:boosted· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Moreover, we found a significant relationship between BMI and HRV.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Finally, in line with the literature, we demonstrated a decrease in both LF and HF with age [95] and the male gender [96].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
What the sources say
- Not checked yetcites [95] M Reardon, 1996, Changes in heart rate variability with age, Pacing Clin Electrophysiol PACE source
Strength:boosted· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Despite missing data, our meta–regressions demonstrated significant and interesting relationships, particularly between HRV parameters and variables linked with T2DM.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:boosted· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Finally, age and the male gender were associated with both a decrease in sympathetic and parasympathetic activity.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“The significant relationship between altered glucose metabolism and HRV may explain the deleterious general metabolic effects on both parasympathetic and sympathetic activity.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Deleterious effects of altered glucose metabolism
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Meta–analyses were reperformed after the exclusion of studies that were not evenly distributed around the base of the funnel and showed similar results.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Meta–analyses of HRV values in T2DM
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Both sympathetic and parasympathetic activity were decreased, which can be explained by the deleterious effects of altered glucose metabolism on HRV, leading to cardiac autonomic neuropathy.”
- Also stated in: § An alteration of both sympathetic and parasympathetic activity · hedged
“An explanation could be that T2DM is a metabolic disease responsible for a cardiac autonomic neuropathy that affects both sympathetic and parasympathetic fibers.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Conclusions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § An alteration of both sympathetic and parasympathetic activity · hedged
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“T2DM was associated with an overall decrease in the HRV of T2DM patients.”
- Also stated in: § Discussion · boosted
“The main findings were that T2DM patients exhibited a strong decrease in HRV.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Conclusions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passes- Also stated in: § Discussion · boosted
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Another explanation of this relation that could appear contradictory is that blood glucose levels are not a good marker to evaluate diabetes control compared with HbA1c: blood glucose levels reflect an instantaneous level whereas HbA1c reflect diabetes control over the previous months.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Deleterious effects of altered glucose metabolism
Load-bearingStrength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Although the evaluation of HRV in T2DM has been assessed in several studies, conflicting results have been reported [20–22].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Introduction
What the sources say
- Not checked yetcites [20] JD Solanki, Comparative study of cardiac autonomic status by heart rate variability between under-treatment normotensive and hypertensive known type 2 diabetics, Indian Heart J
- Not checked yetcites [21] MB Lotric, 2000, Spectral components of heart rate variability determined by wavelet analysis, Physiol Meas source
- Not checked yetcites [22] B Roy, 2013, Nonlinear methods to assess changes in heart rate variability in type 2 diabetic patients, Arq Bras Cardiol
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIn the paper
“Therefore, low HRV is a marker of cardiovascular risk [18].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Introduction
What the sources say
- Not checked yetcites [18] G Boudet, 2017, Paradoxical dissociation between heart rate and heart rate variability following different modalities of exercise in individuals with metabolic syndrome: The RESOLVE study, Eur J Prev Cardiol source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Indeed, most of the studies included were cross–sectional, with different measurement conditions for HRV parameters associated with a high inter and intra–individual variability.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“In addition, some studies were monocentric, limiting the generalizability of our results.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIn the paper
“Furthermore, despite HRV being linked with the severity of T2DM [23], no studies have comprehensively assessed the role of the most common variables, such as age [24], gender [25], blood glucose control [26], or medications treating for T2DM, on HRV parameters [27,28].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Introduction
What the sources say
- Not checked yetcites [23] J Gerritsen, 2001, Impaired autonomic function is associated with increased mortality, especially in subjects with diabetes, hypertension, or a history of cardiovascular disease the Hoorn study, Diabetes Care source
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Moreover, the health status of controls was not detailed in all studies, which could have influenced HRV parameters.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This may have also minimized the differences in HRV between T2DM patients and controls.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Moreover, the health status of controls was not detailed in all studies, which could have influenced HRV parameters.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“However, age and gender have a minor role on HRV parameters compared with the variables linked to T2DM.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Despite our rigorous criteria for including studies in our meta–analysis, their quality varied.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, the final number of patients included in the metaanalysis was not very high and may precluded generalizability, however the mean age could be considered as quite representative.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedCausal:conditional· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesNone of the sources cited for this claim have been checked yet.
In the paper
“Furthermore, despite HRV being linked with the severity of T2DM [23], no studies have comprehensively assessed the role of the most common variables, such as age [24], gender [25], blood glucose control [26], or medications treating for T2DM, on HRV parameters [27,28].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Introduction
What the sources say
- Not checked yetcites [27] Kilit C, Demir S, Pasali Kilit T, Melek M. The effects of metformin and rosiglitazone on heart rate variability in type 2 diabetes mellitus. Int Soc Electrocardiol Annu Meet—Istanb 200734th Int Congr Electrocardiol. 2007;40: S40–S41. source
- Not checked yetcites [28] P Kumarathurai, 2016, Effects of Liraglutide on Heart Rate and Heart Rate Variability: A Randomized, Double-Blind, Placebo-Controlled Crossover Study, Diabetes Care
Load-bearingStrength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Indeed, most of the studies included were cross–sectional, with different measurement conditions for HRV parameters associated with a high inter and intra–individual variability.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesA conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“In addition, some studies were monocentric, limiting the generalizability of our results.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesWhat the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“However, included studies were homogeneous according to funnel plots, and the populations investigated in the meta–analysis appeared to be equally distributed around the world.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passes
- It may state two separate claims as one. 9
- The quote only partly states this claim. 1
- Probably not a substantial claim. 11
The paper states this without a source or data behind it here, so there is nothing to check it against. The quote shows it is in the paper.
In the paper
“Both sympathetic and parasympathetic activity were decreased, which can be explained by the deleterious effects of altered glucose metabolism on HRV.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Conclusion
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
In the paper
“Finally, in line with the literature, we demonstrated a decrease in both LF and HF with age [95] and the male gender [96].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Other variables linked with HRV in T2DM
What the sources say
- Not checked yetcites [96] P Pavithran, 2008, Sex differences in short-term heart rate variability in patients with newly diagnosed essential hypertension, J Clin Hypertens Greenwich Conn source
Strength:boosted· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesThe quote only partly states this claim.
In the paper
“The RMSSD and pNN50 are associated with high–frequency power (HF) and hence parasympathetic activity, whereas SDNN is correlated with low–frequency power (LF) [33].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Methods > HRV parameters
What the sources say
- Not checked yetcites [33] H Otzenberger, 1998, Dynamic heart rate variability: a tool for exploring sympathovagal balance continuously during sleep in men, Am J Physiol
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“With the exception of the LF/HF ratio, which did not differ in our meta–analysis due to comparable changes in the LF and HF components, T2DM has a negative influence on almost all HRV parameters, reflecting the fact that diabetes leads to a cardiac autonomic dysfunction.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > An alteration of both sympathetic and parasympathetic activity
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Both sympathetic and parasympathetic activity were decreased, which can be explained by the deleterious effects of altered glucose metabolism on HRV, leading to cardiac autonomic neuropathy.”
- Also stated in: § An alteration of both sympathetic and parasympathetic activity · boosted
“However, we demonstrated that T2DM patients had a decrease in both parasympathetic and sympathetic activity.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Abstract > Conclusions
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✓ Based: passesIt may state two separate claims as one.
- Also stated in: § An alteration of both sympathetic and parasympathetic activity · boosted
In the paper
“Despite we demonstrated a decreased SDNN in T2DM patients, the metaregression is not contradictory but may simply highlights the fact that cardiac parasympathetic activity in T2DM is affected before sympathetic activity [80].”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Deleterious effects of altered glucose metabolism
What the sources say
- Not checked yetcites [80] RK Goit, 2012, Cardiovascular autonomic function and vibration perception threshold in type 2 diabetes mellitus, J Diabetes Complications source
Strength:hedged· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Dyslipdaemia and high blood pressure are linked with a decreased HRV in T2DM.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion
Strength:plain· not yet calibratedCausal:correlational· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Two authors (Thomas Benichou and Frédéric Dutheil) reviewed the abstracts independently and checked if article could be included in our metanalaysis according to inclusion critera. When consensus on suitability was not reached, a third author (Bruno Pereira) reviewed the debated articles.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Methods > Literature search
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, the final number of patients included in the metaanalysis was not very high and may precluded generalizability, however the mean age could be considered as quite representative.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Results varied from 50% [59] to 71% [56] for the observational studies (STROBE), with a mean score of 59%.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Quality of articles
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“However, included studies were homogeneous according to funnel plots, and the populations investigated in the meta–analysis appeared to be equally distributed around the world.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Both sympathetic and parasympathetic activity were decreased, which can be explained by the deleterious effects of altered glucose metabolism on HRV.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Conclusion
Tests✓ Asserted: passes✓ Checkable: passes✓ Load-bearing: passes✗ Based: failsProbably not a substantial claim. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Similarly, the final number of patients included in the metaanalysis was not very high and may precluded generalizability, however the mean age could be considered as quite representative.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedTests✓ Asserted: passes✗ Checkable: fails✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. It may be too vague to check against evidence. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“However, the use of broader keywords in the search strategy limits the number of missing studies.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedCausal:direct· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Though there were similarities between the participants’ inclusion criteria, they were not identical.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Results varied from 52% [59] to 67% [57] for the randomized trials (CONSORT), with a mean score of 59.5%.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Quality of articles
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes? Load-bearing: unclear✓ Based: passesIt may state two separate claims as one.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“The assessment of the quality of the twenty–five studies that were included was performed using the STROBE and CONSORT criteria.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Results > Quality of articles
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“We searched for potential publication bias using funnel plots of these meta–analyses.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Methods > Statistical considerations
Strength:plain· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✓ Based: passesProbably not a substantial claim. The paper’s conclusions may not depend on it.
What the paper did — it cites no source for this, so there is none to check. The quote shows it is in the paper.
In the paper
“Variables retrieved from declarative data in each study included are also a putative bias.”
§ Heart rate variability in type 2 diabetes mellitus: A systematic review and meta–analysis > Discussion > Limitations
Strength:hedged· not yet calibratedTests✓ Asserted: passes✓ Checkable: passes✗ Load-bearing: fails✗ Based: failsProbably not a substantial claim. The paper’s conclusions may not depend on it. The paper may give no reason why it holds.
The paper relies on this without support.
HRV is the gold standard to measure cardiac autonomic neuropathy.
“Heart rate variability (HRV) is the gold standard to measure cardiac autonomic neuropathy.”
The paper relies on this without support.
HRV parameters are associated with high inter- and intra-individual variability.
“with different measurement conditions for HRV parameters associated with a high inter and intra–individual variability.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Both DM and prediabetes are independently associated with lower heart rate variability (HRV), which suggests that cardiac autonomic dysfunction may be characteristic of prediabetes2–5.”
From Sleep and temperature data from wearable devices support noninvasive detection of diabetes mellitus in a large-scale, retrospective analysis (2026) · cites this paper as [3]
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Study designs described as both prospective cohorts and mostly cross-sectional
MajorThe study-design section describes all but one study as prospective cohorts, while the limitations section says most included studies were cross-sectional.
“All studies described a prospective cohort design, except one study which was a randomly controlled prospective study [57].”
“Indeed, most of the studies included were cross–sectional, with different measurement conditions for HRV parameters associated with a high inter and intra–individual variability.”
LF/HF was not significantly decreased
MinorThe limitations section says all measured HRV parameters were significantly decreased, whereas the results explicitly say the LF/HF ratio did not differ between groups.
“We demonstrated that all parameters measuring HRV were significantly decreased in T2DM compared with controls.”
“LF/HF did not differ between groups (effect size = 0.02; 95%CI –0.38 to 0.43; P = 0.914; I2 = 90.1%)”
Randomized-trial quality range includes a study not identified as randomized
MinorThe quality assessment gives a randomized-trial score for study [59], but the study-design section identifies [57] as the sole randomized study.
“Results varied from 52% [59] to 67% [57] for the randomized trials (CONSORT), with a mean score of 59.5%.”
“All studies described a prospective cohort design, except one study which was a randomly controlled prospective study [57].”
Citations
Cites
Meta-analysis in clinical trials
DerSimonian, R., & Laird, N. (1986) · Controlled Clinical Trials · doi:10.1016/0197-2456(86)90046-2 · Cited by 39,552
Heart Rate Variability: Standards of Measurement, Physiological Interpretation, and Clinical Use
Electrophysiology, T. F. O. T. E. S. O. C. T. N. A. (1996) · Circulation · doi:10.1161/01.cir.93.5.1043 · Cited by 17,159
Heart rate variability: Standards of measurement, physiological interpretation, and clinical use
Malik, M., Bigger, J. T., Camm, A. J., Kleiger, R. E., Malliani, A., Moss, A. J., & Schwartz, P. J. (1996) · European Heart Journal · doi:10.1093/oxfordjournals.eurheartj.a014868 · Cited by 15,289
Elm, E. V., Altman, D. G., Egger, M., Pocock, S. J., Gøtzsche, P. C., & Vandenbroucke, J. P. (2007) · BMJ · doi:10.1136/bmj.39335.541782.ad · Cited by 10,766
Moher, D., Hopewell, S., Schulz, K. F., Montori, V., Gotzsche, P. C., Devereaux, P. J., Elbourne, D., Egger, M., & Altman, D. G. (2010) · BMJ · doi:10.1136/bmj.c869 · Cited by 8,883
Colberg, S. R., Sigal, R. J., Fernhall, B., Regensteiner, J. G., Blissmer, B. J., Rubin, R. R., Chasan-Taber, L., Albright, A. L., & Braun, B. (2010) · Diabetes Care · doi:10.2337/dc10-9990 · Cited by 1,955
The Value of Cardiovascular Autonomic Function Tests: 10 Years Experience in Diabetes
Ewing, D. J., Martyn, C., Young, R. J., & Clarke, B. F. (1985) · Diabetes Care · doi:10.2337/diacare.8.5.491 · Cited by 1,436
Type 2 diabetes and incidence of cardiovascular diseases: a cohort study in 1.9 million people
Shah, A. D., Langenberg, C., Rapsomaniki, E., Denaxas, S., Pujades-Rodriguez, M., Gale, C. P., Deanfield, J., Smeeth, L., Timmis, A., & Hemingway, H. (2015) · The Lancet Diabetes & Endocrinology · doi:10.1016/s2213-8587(14)70219-0 · Cited by 1,225
Discrepancies between Meta-Analyses and Subsequent Large Randomized, Controlled Trials
LeLorier, J., Grégoire, G., Benhaddad, A. A., Lapierre, J., & Derderian, F. (1997) · New England Journal of Medicine · doi:10.1056/nejm199708213370806 · Cited by 1,164
Flagged first, then by citations
Research works printed but not linked: 1
- L Boer-Martins, 2012, Leptin and aldosterone in sympathetic activity in resistant hypertension with or without type 2 diabetes, Arq Bras Cardiol, 99, 642
Cited by
Sorted by citations
Atrial Fibrillation and Diabetes Mellitus
Wang, A., Green, J. B., Halperin, J. L., & Piccini, J. P. (2019) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2019.07.020 · Cited by 419
Diabetic neuropathy: cutting-edge research and future directions
Yang, Y., Zhao, B. T., Wang, Y., Lan, H. H., Liu, X., Hu, Y., & Cao, P. (2025) · Signal Transduction and Targeted Therapy · doi:10.1038/s41392-025-02175-1 · Cited by 320
Cao, R., Azimi, I., Sarhaddi, F., Niela-Vilen, H., Axelin, A., Liljeberg, P., & Rahmani, A. M. (2022) · Journal of Medical Internet Research · doi:10.2196/27487 · Cited by 159
Zheng, T., Chen, Z., Cai, C., Luo, J., & Zhang, X. (2020) · Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies · doi:10.1145/3397321 · Cited by 151
A digital biomarker of diabetes from smartphone-based vascular signals
Avram, R., Olgin, J. E., Kuhar, P., Hughes, J. W., Marcus, G. M., Pletcher, M. J., Aschbacher, K., & Tison, G. H. (2020) · Nature Medicine · doi:10.1038/s41591-020-1010-5 · Cited by 136
Metadata
- Authors
- Benichou, T., Pereira, B., Mermillod, M., Tauveron, I., Pfabigan, D., Maqdasy, S., & Dutheil, F.
- Affiliations
- Centre Hospitalier Universitaire de Clermont-Ferrand (FR)
- Centre National de la Recherche Scientifique (FR)
- Peking University (CN)
- Corresponding author
- Dutheil, Frédéric
- ORCID
- Venue
- PLOS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2018-04-02
- Volume
- 13
- Issue
- 4
- Pages
- e0195166
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC5880391
- OpenAlex
- W2888208815
- Cited by
- 419
- References
- 101
- Citations by year
- 2026: 43 · 2025: 63 · 2024: 72 · 2023: 59 · 2022: 66 · 2021: 54 · 2020: 33 · 2019: 23 · 2018: 5
- FWCI
- 5.36
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- PLoS ONE (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- HAL (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Figshare (submittedVersion, cc-by)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Keywords
- type 2 diabetes, heart rate variability, cardiac autonomic neuropathy, autonomic dysfunction, sympathetic activity, parasympathetic activity, blood glucose, HbA1c, cardiovascular mortality, Holter electrocardiogram, RR interval, spectral analysis of HRV, autonomic reinnervation
- MeSH terms
- Adult, Aged, Diabetes Mellitus, Type 2, Female, Heart Rate, Humans, Male, Middle Aged, Regression Analysis, Risk Factors, Body Mass Index, Case-Control Studies
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
A language model drew the claims from the paper on 2026-10-10, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).
A second model labelled each claim on 2026-10-10 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
