Evidence map›Paper›PMID 18795211›Full record

ArticleThe review of diabetic studies : RDS2008

Comparison of metformin and insulin in the treatment of gestational diabetes: a retrospective, case-control study.

Kristiina Tertti, Ulla Ekblad, Tero Vahlberg, Tapani Rönnemaa

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The review of diabetic studies : RDS, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02417090 (Metformin Therapy for Gestational Diabetes - Metabolic Late Effects on Child at 9 Years of Age), which is not on this map. Cited by 36 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 3 pooled it
2.3field-weighted citation impact, top 12% 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.

NCT02417090 completedstarted 2015, after this paper: background citation

Metformin Therapy for Gestational Diabetes - Metabolic Late Effects on Child at 9 Years of Age

Ran2015Enrolled173Registered outcomes1Posted comparisons0ConditionsGestational DiabetesArmsInsulin, Metformin
PMID 21083860PMID 23020608other papers from this trial
Open the trial in the graph
3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 3 syntheses or guidelines pooled it, 94 citations in OpenAlex.

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  15. Factors Associated with the Need for Insulin as a Complementary Treatment to Metformin in Gestational Diabetes Mellitus.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Kristiina TerttiDepartment of Obstetrics and Gynecology, Turku University Central Hospital, Turku, Finland.
Ulla Ekblad
Tero Vahlberg
Tapani Rönnemaa
Turku University Hospital · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesLimited data are available on metformin therapy in gestational diabetes. The aim of the study was to compare maternal and neonatal outcomes in patients with gestational diabetes mellitus (GDM) treated with metformin with those treated with insulin, or diet alone. STUDY DESIGN AND

methodsWe conducted a retrospective study that included 45 GDM women treated with metformin, 45 women treated with insulin and 83 women with no pharmacological treatment. Subjects were matched for pre-pregnancy body mass index (BMI) and age.

resultsThere were no differences between the metformin-treated group and the other two groups in terms of maternal outcomes (total weight gain during pregnancy or after the diagnosis of GDM, pre-pregnancy hypertension, pregnancy induced hypertension, pre-eclampsia etc.). In the diagnostic 2-hour oral glucose tolerance test, glucose values were slightly, but significantly, higher in the insulin group than in the metformin group (p < 0.003). Eighteen percent of mothers treated with metformin needed supplementary insulin therapy. No differences between the metformin-treated group and the other two groups (insulin, diet only) were observed in relation to mean birth weights, prevalence of macrosomia, or gestational weeks at delivery. The incidence of neonatal hypoglycemia was higher in the insulin group than in the metformin group (p = 0.03). There were no differences between the groups in other neonatal outcomes (small for gestational age, Apgar scores, umbilical artery pH or base excess, etc.).

conclusionThese retrospective data suggest that metformin is effective in controlling gestational diabetes and is not associated with a higher risk of maternal or neonatal complications compared with insulin.

Identifiers

PMID18795211
PMCPMC2556447
OpenAlexW157601390

What OpenQuestion holds

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Registered trials

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 OpenQuestion graph.