Cited by 1,881Diabetes, Cardiovascular Risks, and LipoproteinsDiabetes Treatment and ManagementDiabetes Management and Research

The Indian Diabetes Prevention Programme shows that lifestyle modification and metformin prevent type 2 diabetes in Asian Indian subjects with impaired glucose tolerance (IDPP-1)

Open access
Ramachandran, A., Snehalatha, C., Mary, S., Mukesh, B., Bhaskar, A. D., Vijay, V., Indian Diabetes Prevention Programme (IDPP)·2006·Diabetologia

Abstract

Aims/hypothesis Lifestyle modification helps in the primary prevention of diabetes in multiethnic American, Finnish and Chinese populations. In a prospective community-based study, we tested whether the progression to diabetes could be influenced by interventions in native Asian Indians with IGT who were younger, leaner and more insulin resistant than the above populations.Methods We randomised 531 (421 men 110 women) subjects with IGT (mean age 45.9+/-5.7 years, BMI 25.8+/-3.5 kg/m(2)) into four groups. Group 1 was the control, Group 2 was given advice on lifestyle modification (LSM), Group 3 was treated with metformin (MET) and Group 4 was given LSM plus MET. The primary outcome measure was type 2 diabetes as diagnosed using World Health Organization criteria.Results The median follow-up period was 30 months, and the 3-year cumulative incidences of diabetes were 55.0%, 39.3%, 40.5% and 39.5% in Groups 1-4, respectively. The relative risk reduction was 28.5% with LSM (95% CI 20.5-37.3, p=0.018), 26.4% with MET (95% CI 19.1-35.1, p=0.029) and 28.2% with LSM + MET (95% CI 20.3-37.0, p=0.022), as compared with the control group. The number needed to treat to prevent one incident case of diabetes was 6.4 for LSM, 6.9 for MET and 6.5 for LSM + MET.Conclusions/interpretation Progression of IGT to diabetes is high in native Asian Indians. Both LSM and MET significantly reduced the incidence of diabetes in Asian Indians with IGT; there was no added benefit from combining them.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1007/s00125-005-0097-z

Cites

15 of 15 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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 people with prior prediabetes or gestational diabetes, metformin lowered weight and BMI.

    “The Indian and US Diabetes Prevention studies, conducted in people with prior prediabetes or gestational diabetes mellitus (GDM) and likely to include many women with PCOS, reported that metformin lowered weight and BMI and reduced progression to DM2 (Knowler et al. , 2002; Ramachandran et al. , 2006), with metformin more effective for women with prior GDM (Ratner et al. , 2008).”

    From Metformin and lifestyle modification in polycystic ovary syndrome: systematic review and meta-analysis (2015) · cites this paper as Ramachandran et al. , 2006

    The Discussion says the IDPP subjects did not lose weight. The Results report no significant change in body weight from baseline in the metformin group; the paper does not report that metformin lowered BMI or establish this outcome in people with prior GDM. It does report reduced progression from impaired glucose tolerance to diabetes. (LLM, conf=0.88)

    Checked by a reasoning model — may be wrong.

    Experimental — accuracy not yet measured
  • The DPP and other clinical trials have established the feasibility of interrupting the worsening of hyperglycaemia in overweight people with raised fasting or postload glycaemia.

    “The DPP and other clinical trials12–16 have established the feasibility of interruption of the worsening of hyperglycaemia in overweight people who have raised fasting or postload glycaemia.”

    From 10-year follow-up of diabetes incidence and weight loss in the Diabetes Prevention Program Outcomes Study (2009) · cites this paper as [16]

    The Discussion reports that lifestyle modification and metformin reduced progression from impaired glucose tolerance to diabetes in native Asian Indian subjects, supporting the feasibility claim for people with raised postload glucose. The Population and recruitment section defines that glucose criterion, but the trial did not require participants to be overweight; the Discussion gives a mean BMI of 25.8, not an overweight-only result. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Five clinical trials of reputedly healthy, energy-restricted diets plus increased physical activity in individuals with impaired glucose tolerance showed risk reductions between 30 and 70%.

    “Five clinical trials that examined the effects of reputedly healthy, energy-restricted diets together with increased physical activity in individuals with impaired glucose tolerance, a prediabetic stage, showed risk reductions between 30 and 70% ( 2 – 6 ).”

    From Reduction in the Incidence of Type 2 Diabetes With the Mediterranean Diet (2011) · cites this paper as [6]

    The Population and recruitment section describes advice to reduce calories and increase physical activity for participants with impaired glucose tolerance. The Discussion’s Table 3 reports a 28.5% relative risk reduction for lifestyle modification—just below the claimed 30–70% range. The Introduction identifies four earlier lifestyle trials, but this paper does not establish that all five achieved reductions within that range. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • In people with prior prediabetes or gestational diabetes, metformin reduced progression to type 2 diabetes.

    “The Indian and US Diabetes Prevention studies, conducted in people with prior prediabetes or gestational diabetes mellitus (GDM) and likely to include many women with PCOS, reported that metformin lowered weight and BMI and reduced progression to DM2 (Knowler et al. , 2002; Ramachandran et al. , 2006), with metformin more effective for women with prior GDM (Ratner et al. , 2008).”

    From Metformin and lifestyle modification in polycystic ovary syndrome: systematic review and meta-analysis (2015) · cites this paper as Ramachandran et al. , 2006

    Table 3 (Discussion; page unavailable) reports lower three-year diabetes incidence with metformin than with control among Asian Indian participants with impaired glucose tolerance. The citing sentence also attributes lower weight and BMI to this study, but the Results report no significant weight decrease in the metformin group. The study does not establish the result for people with prior gestational diabetes. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • Lifestyle modification has been proven to prevent or at least delay type 2 diabetes and its complications in large randomized trials.

    “lifestyle modification (LSM) has been proven to prevent or at least delay type 2 diabetes and its complications in large randomized trials (2–6)”

    From Global diabetes prevention interventions: A systematic review and network meta-analysis of the real-world impact on incidence, weight, and glucose (2018) · cites this paper as [3]

    The Introduction (page unavailable) says randomized studies found that lifestyle modification delays or prevents progression to diabetes, and the Discussion reports lower diabetes incidence in this trial’s lifestyle group than in controls. The paper does not report that lifestyle modification prevents or delays diabetes complications; its measured outcome was diabetes onset. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ramachandran, A., Snehalatha, C., Mary, S., Mukesh, B., Bhaskar, A. D., Vijay, V., & Indian Diabetes Prevention Programme (IDPP)
Affiliations
M.V. Hospital for Diabetes and Diabetes Research Centre (IN)
Corresponding author
Ramachandran, A.
Venue
Diabetologia
Published
2006-01-04
Volume
49
Issue
2
Pages
289-297
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2006625394
Cited by
1,881
References
15
Citations by year
2026: 41 · 2025: 77 · 2024: 76 · 2023: 76 · 2022: 89 · 2021: 89 · 2020: 91 · 2019: 83 · 2018: 111 · 2017: 97 · 2016: 120 · 2015: 115 · 2014: 87 · 2013: 112 · 2012: 102
FWCI
62.08
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
type 2 diabetes prevention, impaired glucose tolerance, lifestyle modification, metformin, Asian Indians, primary prevention, diabetes incidence, insulin resistance, number needed to treat
MeSH terms
Adult, Combined Modality Therapy, Diabetes Mellitus, Type 2, Female, Humans, Hypoglycemic Agents, India, Life Style, Male, Metformin, Middle Aged, Prospective Studies, Incidence, Proportional Hazards Models, Glucose Intolerance, Disease Progression, Asian People

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