The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Effects of Continuous Glucose Monitoring on Metrics of Glycemic Control in Diabetes: A Systematic Review With Meta-analysis of Randomized Controlled Trials
Abstract
Background Continuous glucose monitoring (CGM) provides important information to aid in achieving glycemic targets in people with diabetes. Purpose We performed a meta-analysis of randomized controlled trials (RCTs) comparing CGM with usual care for parameters of glycemic control in both type 1 and type 2 diabetes. Data sources Many electronic databases were searched for articles published from inception until 30 June 2019. Study selection We selected RCTs that assessed both changes in HbA 1c and time in target range (TIR), together with time below range (TBR), time above range (TAR), and glucose variability expressed as coefficient of variation (CV). Data extraction Data were extracted from each trial by two investigators. Data synthesis All results were analyzed by a random effects model to calculate the weighted mean difference (WMD) with the 95% CI. We identified 15 RCTs, lasting 12-36 weeks and involving 2,461 patients. Compared with the usual care (overall data), CGM was associated with modest reduction in HbA 1c (WMD -0.17%, 95% CI -0.29 to -0.06, I 2 = 96.2%), increase in TIR (WMD 70.74 min, 95% CI 46.73-94.76, I 2 = 66.3%), and lower TAR, TBR, and CV, with heterogeneity between studies. The increase in TIR was significant and robust independently of diabetes type, method of insulin delivery, and reason for CGM use. In preplanned subgroup analyses, real-time CGM led to the higher improvement in mean HbA 1c (WMD -0.23%, 95% CI -0.36 to -0.10, P P Limitations Heterogene…
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
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?
In the citing paper
“The glycemic management of T1DM has increasingly focused beyond HbA1c alone to include metrics such as TIR, hypoglycemia exposure, and glycemic variability, which reflect day-to-day glucose control and its impact on patients' lives.”
From Effectiveness of continuous glucose monitoring systems on glycemic control in adults with type 1 diabetes: A systematic review and meta-analysis (2025) · cites this paper as [42]
In the citing paper
“Similar results have been found in trials comparing intermittently scanned (flash) monitoring with capillary blood glucose monitoring.18,19”
From Blood glucose monitoring devices: current considerations (2023) · cites this paper as [18]
In the citing paper
“In pivotal trials, glycated haemoglobin concentrations typically decreased by 0.4–0.6%, the time in target range (3.9–10 mmol/L) increased by 60–100 minutes/day, and the time below target range decreased by 10–45 minutes/day.18”
From Blood glucose monitoring devices: current considerations (2023) · cites this paper as [18]
Citations
Cites
Bias in meta-analysis detected by a simple, graphical test
Egger, M., Smith, G. D., Schneider, M., & Minder, C. (1997) · BMJ · doi:10.1136/bmj.315.7109.629 · Cited by 56,722
Liberati, A., Altman, D. G., Tetzlaff, J., Mulrow, C., Gøtzsche, P. C., Ioannidis, J. P. A., Clarke, M., Devereaux, P. J., Kleijnen, J., & Moher, D. (2009) · PLoS Medicine · doi:10.1371/journal.pmed.1000100 · Cited by 28,164
(1993) · New England Journal of Medicine · doi:10.1056/nejm199309303291401 · Cited by 24,667
Cochrane Handbook for Systematic Reviews of Interventions
(2019) · doi:10.1002/9781119536604 · Cited by 14,828
Duval, S., & Tweedie, R. (2000) · Biometrics · doi:10.1111/j.0006-341x.2000.00455.x · Cited by 14,099
Wan, X., Wang, W., Liu, J., & Tong, T. (2014) · BMC Medical Research Methodology · doi:10.1186/1471-2288-14-135 · Cited by 11,735
Liberati, A., Altman, D. G., Tetzlaff, J., Mulrow, C., Gøtzsche, P. C., Ioannidis, J. P. A., Clarke, M., Devereaux, P. J., Kleijnen, J., & Moher, D. (2009) · Annals of Internal Medicine · doi:10.7326/0003-4819-151-4-200908180-00136 · Cited by 10,349
Stratton, I. M. (2000) · BMJ · doi:10.1136/bmj.321.7258.405 · Cited by 9,059
Battelino, T., Danne, T., Bergenstal, R. M., Amiel, S. A., Beck, R., Biester, T., Bosi, E., Buckingham, B. A., Cefalu, W. T., Close, K. L., et al. (2019) · Diabetes Care · doi:10.2337/dci19-0028 · Cited by 4,237 · cited 2×
“use in clinical practice to help physicians better define the glycemic status of persons with diabetes (36).”
BackgroundInternational consensus on use of continuous glucose monitoring
Danne, T., Nimri, R., Battelino, T., Bergenstal, R. M., Close, K. L., DeVries, J. H., Garg, S., Heinemann, L., Hirsch, I., Amiel, S. A., et al. (2017) · Diabetes Care · doi:10.2337/dc17-1600 · Cited by 2,069
Basics of meta‐analysis: I 2 is not an absolute measure of heterogeneity
Borenstein, M., Higgins, J. P. T., Hedges, L. V., & Rothstein, H. R. (2017) · Research Synthesis Methods · doi:10.1002/jrsm.1230 · Cited by 1,848 · cited 1×
“The proportion of variation in observed effects due to heterogeneity rather than sampling error was evaluated by using I(2) index (15).”
MethodContinuous glucose monitoring and intensive treatment of type 1 diabetes
(2008) · New England Journal of Medicine · doi:10.1056/nejmoa0805017 · Cited by 1,559
Beck, R. W., Riddlesworth, T., Ruedy, K., Ahmann, A., Bergenstal, R., Haller, S., Kollman, C., Kruger, D., McGill, J. B., Polonsky, W., et al. (2017) · JAMA · doi:10.1001/jama.2016.19975 · Cited by 1,185 · cited 1×
“Insulin delivery was by CSII alone in threetrials (20,31,32), byMDI in five trials (23,24,26,27,30), and by CSII orMDI in seven trials (18,19,21,22,25,28,29).”
MethodFeig, D. S., Donovan, L. E., Corcoy, R., Murphy, K. E., Amiel, S. A., Hunt, K. F., Asztalos, E., Barrett, J. F. R., Sanchez, J. J., de Leiva, A., et al. (2017) · The Lancet · doi:10.1016/s0140-6736(17)32400-5 · Cited by 803
Validation of Time in Range as an Outcome Measure for Diabetes Clinical Trials
Beck, R. W., Bergenstal, R. M., Riddlesworth, T. D., Kollman, C., Li, Z., Brown, A. S., & Close, K. L. (2019) · Diabetes Care · doi:10.2337/dc18-1444 · Cited by 793
6. Glycemic Targets: Standards of Medical Care in Diabetes—2019
American Diabetes Association (2019) · Diabetes Care · doi:10.2337/dc19-s006 · Cited by 655
Beck, R. W., Riddlesworth, T. D., Ruedy, K., Ahmann, A., Haller, S., Kruger, D., McGill, J. B., Polonsky, W., Price, D., Aronoff, S., et al. (2017) · Annals of Internal Medicine · doi:10.7326/m16-2855 · Cited by 635
Haak, T., Hanaire, H., Ajjan, R., Hermanns, N., Riveline, J.-P., & Rayman, G. (2017) · Diabetes Therapy · doi:10.1007/s13300-016-0223-6 · Cited by 623
Laiteerapong, N., Ham, S. A., Gao, Y., Moffet, H. H., Liu, J. Y., Huang, E. S., & Karter, A. J. (2019) · Diabetes Care · doi:10.2337/dc17-1144 · Cited by 574
Pickup, J. C., Freeman, S. C., & Sutton, A. J. (2011) · BMJ · doi:10.1136/bmj.d3805 · Cited by 541
Heinemann, L., Freckmann, G., Ehrmann, D., Faber-Heinemann, G., Guerra, S., Waldenmaier, D., & Hermanns, N. (2018) · The Lancet · doi:10.1016/s0140-6736(18)30297-6 · Cited by 522
Lu, J., Ma, X., Zhou, J., Zhang, L., Mo, Y., Ying, L., Lu, W., Zhu, W., Bao, Y., Vigersky, R. A., et al. (2018) · Diabetes Care · doi:10.2337/dc18-1131 · Cited by 517
Effect of Continuous Glucose Monitoring on Hypoglycemia in Type 1 Diabetes
Battelino, T., Phillip, M., Bratina, N., Nimri, R., Oskarsson, P., & Bolinder, J. (2011) · Diabetes Care · doi:10.2337/dc10-1989 · Cited by 496
the SWITCH Study Group, Battelino, T., Conget, I., Olsen, B., Schütz-Fuhrmann, I., Hommel, E., Hoogma, R., Schierloh, U., Sulli, N., & Bolinder, J. (2012) · Diabetologia · doi:10.1007/s00125-012-2708-9 · Cited by 494
Yeh, H.-C., Brown, T. T., Maruthur, N., Ranasinghe, P., Berger, Z., Suh, Y. D., Wilson, L. M., Haberl, E. B., Brick, J., Bass, E. B., et al. (2012) · Annals of Internal Medicine · doi:10.7326/0003-4819-157-5-201209040-00508 · Cited by 493
The relationships between time in range, hyperglycemia metrics, and HbA1c
Beck, R. W., Bergenstal, R. M., Cheng, P., Kollman, C., Carlson, A. L., Johnson, M. L., & Rodbard, D. (2019) · Journal of Diabetes Science and Technology · doi:10.1177/1932296818822496 · Cited by 479
The relationship of hemoglobin A1C to time-in-range in patients with diabetes
Vigersky, R. A., & McMahon, C. (2019) · Diabetes Technology & Therapeutics · doi:10.1089/dia.2018.0310 · Cited by 464
van Beers, C. A. J., DeVries, J. H., Kleijer, S. J., Smits, M. M., Geelhoed-Duijvestijn, P. H., Kramer, M. H. H., Diamant, M., Snoek, F. J., & Serné, E. H. (2016) · The Lancet Diabetes & Endocrinology · doi:10.1016/s2213-8587(16)30193-0 · Cited by 386
Forlenza, G. P., Li, Z., Buckingham, B. A., Pinsker, J. E., Cengiz, E., Wadwa, R. P., Ekhlaspour, L., Church, M. M., Weinzimer, S. A., Jost, E., et al. (2018) · Diabetes Care · doi:10.2337/dc18-0771 · Cited by 246
Little, S. A., Leelarathna, L., Walkinshaw, E., Tan, H. K., Chapple, O., Lubina-Solomon, A., Chadwick, T. J., Barendse, S., Stocken, D. D., Brennand, C., et al. (2014) · Diabetes Care · doi:10.2337/dc14-0030 · Cited by 237
Ruedy, K. J., Parkin, C. G., Riddlesworth, T. D., & Graham, C. (2017) · Journal of Diabetes Science and Technology · doi:10.1177/1932296817704445 · Cited by 225
O’Connell, M. A., Donath, S. M., O'Neal, D. N., Colman, P. G., Ambler, G. R., Jones, T. W., Davis, E. A., & Cameron, F. J. (2009) · Diabetologia · doi:10.1007/s00125-009-1365-0 · Cited by 212
Clinical Implications of Real-time and Intermittently Scanned Continuous Glucose Monitoring
Edelman, S. V., Argento, N. B., Pettus, J., & Hirsch, I. B. (2018) · Diabetes Care · doi:10.2337/dc18-1150 · Cited by 209
Clinical Use of Continuous Glucose Monitoring in Adults with Type 2 Diabetes
Carlson, A. L., Mullen, D. M., & Bergenstal, R. M. (2017) · Diabetes Technology & Therapeutics · doi:10.1089/dia.2017.0024 · Cited by 181
7. Diabetes Technology: Standards of Medical Care in Diabetes—2019
American Diabetes Association (2019) · Diabetes Care · doi:10.2337/dc19-s007 · Cited by 179
Oskarsson, P., Antuna, R., Geelhoed-Duijvestijn, P. H. L. M., Kröger, J., Weitgasser, R., & Bolinder, J. (2017) · Diabetologia · doi:10.1007/s00125-017-4527-5 · Cited by 167
Battelino, T., Nimri, R., Dovč, K., Phillip, M., & Bratina, N. (2017) · Diabetes Care · doi:10.2337/dc16-2584 · Cited by 155
Improving the clinical value and utility of CGM systems: issues and recommendations
Petrie, J. R., Peters, A. L., Bergenstal, R. M., Holl, R. W., Fleming, G. A., & Heinemann, L. (2017) · Diabetologia · doi:10.1007/s00125-017-4463-4 · Cited by 143
Abraham, M. B., Nicholas, J. A., Smith, G. J., Fairchild, J. M., King, B. R., Ambler, G. R., Cameron, F. J., Davis, E. A., Jones, T. W., & on behalf of the PLGM Study Group (2017) · Diabetes Care · doi:10.2337/dc17-1604 · Cited by 143
Gandhi, G. Y., Kovalaske, M. A., Kudva, Y. C., Walsh, K., Elamin, M. B., Beers, M. C., Coyle, C., Goalen, M. J., Murad, M. S., Erwin, P. J., et al. (2011) · Journal of Diabetes Science and Technology · doi:10.1177/193229681100500419 · Cited by 136
Improving the Clinical Value and Utility of CGM Systems: Issues and Recommendations
Petrie, J. R., Peters, A. L., Bergenstal, R. M., Holl, R. W., Fleming, G. A., & Heinemann, L. (2017) · Diabetes Care · doi:10.2337/dci17-0043 · Cited by 135
Bosi, E., Choudhary, P., de Valk, H. W., Lablanche, S., Castañeda, J., de Portu, S., Silva, J. D., Ré, R., Vorrink, L., Shin, J., et al. (2019) · The Lancet Diabetes & Endocrinology · doi:10.1016/s2213-8587(19)30150-0 · Cited by 125
Park, C., & Le, Q. A. (2018) · Diabetes Technology & Therapeutics · doi:10.1089/dia.2018.0177 · Cited by 107
Benkhadra, K., Alahdab, F., Tamhane, S. U., Wang, Z., Prokop, L. J., Hirsch, I. B., Raccah, D., Riveline, J., Kordonouri, O., & Murad, M. H. (2016) · Clinical Endocrinology · doi:10.1111/cen.13290 · Cited by 66
Maiorino, M. I., Petrizzo, M., Bellastella, G., & Esposito, K. (2017) · Endocrine · doi:10.1007/s12020-017-1328-z · Cited by 9
Self-citation
Flagged first, then by citations
Cited by
Sorted by citations
Lu, J., Wang, C., Shen, Y., Chen, L., Zhang, L., Cai, J., Lu, W., Zhu, W., Hu, G., Xia, T., et al. (2021) · Diabetes Care · doi:10.2337/dc20-1862 · Cited by 282
Karter, A. J., Parker, M. M., Moffet, H. H., Gilliam, L. K., & Dlott, R. (2021) · JAMA · doi:10.1001/jama.2021.6530 · Cited by 191
Continuous glucose monitoring in adults with type 2 diabetes: a systematic review and meta-analysis
Jancev, M., Vissers, T. A. C. M., Visseren, F. L. J., van Bon, A. C., Serné, E. H., DeVries, J. H., de Valk, H. W., & van Sloten, T. T. (2024) · Diabetologia · doi:10.1007/s00125-024-06107-6 · Cited by 191
Teo, E., Hassan, N., Tam, W., & Koh, S. (2022) · Diabetologia · doi:10.1007/s00125-021-05648-4 · Cited by 186
Diagnosis and treatment of type 1 diabetes at the dawn of the personalized medicine era
Akil, A. A., Yassin, E., Al-Maraghi, A., ALIYEV, E. E., Al-Malki, K., & Fakhro, K. A. (2021) · Journal of Translational Medicine · doi:10.1186/s12967-021-02778-6 · Cited by 217
Metadata
- Authors
- Maiorino, M. I., Signoriello, S., Maio, A., Chiodini, P., Bellastella, G., Scappaticcio, L., Longo, M., Giugliano, D., & Esposito, K.
- Affiliations
- University of Campania "Luigi Vanvitelli" (IT)
- Corresponding author
- Maiorino, Maria Ida
- ORCID
- Venue
- Diabetes Care
- Publisher
- American Diabetes Association
- Published
- 2020-04-13
- Volume
- 43
- Issue
- 5
- Pages
- 1146-1156
- ISSN
- 0149-5992 (ISSN-L)
- 1935-5548
- OpenAlex
- W3017384252
- Cited by
- 364
- References
- 45
- Citations by year
- 2026: 45 · 2025: 76 · 2024: 75 · 2023: 59 · 2022: 53 · 2021: 37 · 2020: 19
- FWCI
- 6.45
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Diabetes Care (publishedVersion)
- PubMed (publishedVersion)
- Archivio Istituzionale della Ricerca - Università degli Studi della Campania "Luigi Vanvitelli" (submittedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Education
- Keywords
- continuous glucose monitoring, glycemic control, HbA1c, time in range, time below range, time above range, glycemic variability, coefficient of variation, type 1 diabetes, type 2 diabetes, sensor-augmented pump, flash glucose monitoring, real-time CGM, usual care comparison, insulin delivery method, hypoglycemia, hyperglycemia
- MeSH terms
- Glycemic Control, Blood Glucose, Diabetes Mellitus, Type 1, Diabetes Mellitus, Type 2, Female, Humans, Insulin, Male, Time Factors, Blood Glucose Self-Monitoring, Randomized Controlled Trials as Topic, Databases, Factual, Outcome Assessment, Health Care, Benchmarking
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.
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