Evidence mapPaperPMID 19465232Full record

SynthesisLancet (London, England)2009

Type 2 diabetes mellitus after gestational diabetes: a systematic review and meta-analysis.

Leanne Bellamy, Juan-Pablo Casas, Aroon D Hingorani, David Williams

8 registry-linked trialsAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Lancet (London, England), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 8 registered trials, which are not on this map. Cited by 1,549 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1,549citing papers in PubMed, 8 pooled it
71.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06948825 phase2recruitingstarted 2025, after this paper: background citation

Effectiveness Study of a Lifestyle Intervention Versus Metformin in Mothers With Recent Gestational Diabetes

Ran2025Enrolled60Registered outcomes12Posted comparisons0ConditionsGestational Diabetes Mellitus in Pregnancy, Postpartum Care, Weight LossArmsEnhanced Lifestyle Intervention, Lifestyle Intervention, Metformin Hcl 850Mg Tab
Open the trial in the graph
NCT01675271 nacompletednot on this mapstarted 2012, after this paper: background citation

Effect Of Individual Exercise Prescription On Cardiovascular Risk Factors In Woman At Risk For Gestational Diabetes - Focus On Autonomic Nervous System And Inflammation

TypeinterventionalSponsorHelsinki University Central HospitalRan2012 to 2016Enrolled66ConditionsGestational Diabetes, Cardiovascular Risk FactorsArmsindividual exercise, general exercise
NCT03249896 naunknown statusnot on this mapstarted 2017, after this paper: background citation

Effects of a Web/Smartphone-based Lifestyle Coaching Program on Gestational Weight Gain in Pregnant Women With Gestational Diabetes

TypeinterventionalSponsorNational University Hospital, SingaporeRan2017 to 2019Enrolled340ConditionsGestational Diabetes, Pregnancy Complications, Weight GainArmsHabits-GDM mobile app
NCT03607799 naactive not recruitingnot on this mapstarted 2020, after this paper: background citation

A Culturally-tailored Personalized Nutrition Intervention in South Asian Women at Risk of Gestational Diabetes Mellitus

TypeinterventionalSponsorMcMaster UniversityRan2020 to 2025Enrolled140ConditionsDiabetes, GestationalArmsDietary Intervention, Control
NCT03638102 nacompletednot on this mapstarted 2019, after this paper: background citation

The Effect of Sleep Extension on Glucose Metabolism in Women With Previous Diagnosis of Gestational Diabetes

TypeinterventionalSponsorUniversity of Illinois at ChicagoRan2019 to 2021Enrolled18ConditionsGestational DiabetesArmsSleep extension, Healthy living
NCT03834194 nacompletednot on this mapstarted 2019, after this paper: background citation

Effect of Incentives for Self-weighing, Weight Management Goals and Physical Activity Goals on Gaining Weight Healthily During Pregnancy

TypeinterventionalSponsorUniversity of TennesseeRan2019 to 2020Enrolled40ConditionsGestational Weight GainArmsLottery + Monthly Weight, Lottery + Overall Weight + Exercise, Lottery + Overall Weight, Loss + Overall Weight, Loss + Overall Weight + Exercise
NCT04251559 nacompletednot on this mapstarted 2014, after this paper: background citation

Evaluation of the Relationship Between Age at Menarche and Gestational Diabetes Mellitus

TypeinterventionalSponsorDerince Training and Research HospitalRan2014 to 2019Enrolled374ConditionsDiabetes, Gestational, Menstrual Cycle AbnormalArmsoral glucose loading test
NCT04521712 nacompletednot on this mapstarted 2021, after this paper: background citation

Postpartum Glycemia in Women At Risk for Persistent Hyperglycemia

TypeinterventionalSponsorUniversity of Alabama at BirminghamRan2021 to 2024Enrolled40ConditionsGestational DiabetesArms2-hour 75-g oral glucose tolerance test and Dexcom G6 Pro continuous glucose monitor
3 · Its place in the literature

Who cites it

1,549 citing papers in PubMed, 8 syntheses or guidelines pooled it, 3,222 citations in OpenAlex.

  1. Pooled it
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  5. Prediction Models for Maternal and Offspring Short- and Long-Term Outcomes Following Gestational Diabetes: A Systematic Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Pooled it
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  9. Trial
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  15. Review
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1,489 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Leanne BellamyNorthwick Park Hospital, London, UK.
Juan-Pablo Casas
Aroon D Hingorani
David Williams
University College London · GBLondon School of Hygiene & Tropical Medicine · GBNorthwick Park Hospital · GB

Funding

British Heart Foundation FS051/125
6 · The paper itself

Abstract

backgroundWomen with gestational diabetes are at increased risk of developing type 2 diabetes, but the risk and time of onset have not been fully quantified. We therefore did a comprehensive systematic review and meta-analysis to assess the strength of association between these conditions and the effect of factors that might modify the risk.

methodsWe identified cohort studies in which women who had developed type 2 diabetes after gestational diabetes were followed up between Jan 1, 1960, and Jan 31, 2009, from Embase and Medline. 205 relevant reports were hand searched. We selected 20 studies that included 675 455 women and 10 859 type 2 diabetic events. We calculated and pooled unadjusted relative risks (RRs) with 95% CIs for each study using a random-effects model. Subgroups analysed were the number of cases of type 2 diabetes, ethnic origin, duration of follow-up, maternal age, body-mass index, and diagnostic criteria.

findingsWomen with gestational diabetes had an increased risk of developing type 2 diabetes compared with those who had a normoglycaemic pregnancy (RR 7.43, 95% CI 4.79-11.51). Although the largest study (659 164 women; 9502 cases of type 2 diabetes) had the largest RR (12.6, 95% CI 12.15-13.19), RRs were generally consistent among the subgroups assessed.

interpretationIncreased awareness of the magnitude and timing of the risk of type 2 diabetes after gestational diabetes among patients and clinicians could provide an opportunity to test and use dietary, lifestyle, and pharmacological interventions that might prevent or delay the onset of type 2 diabetes in affected women.

fundingNone.

Indexed as

AdolescentAdultAftercareBiasCohort StudiesDiabetes, GestationalDiabetes Mellitus, Type 2FemaleGlucose Tolerance TestHumansMaternal AgeMiddle AgedPostnatal CarePregnancyResearch DesignRetrospective Studies

Identifiers

PMID19465232
OpenAlexW2155326729

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

and 2 more above

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.