Gestational diabetes & diabetes in pregnancy

Pregnancy and postpartum cardiometabolic outcomes among women with overt diabetes compared to women with normoglycaemia, gestational diabetes and pre‐existing diabetes: A systematic review and meta‐analysis

Diabetes Obes MetabPublished Systematic review and meta-analysis

Authors' conclusion

This SRM demonstrates that ODiP is associated with significantly worse pregnancy and postpartum outcomes compared with GDM and normoglycaemia in pregnancy. These findings underscore the need for targeted clinical strategies to manage ODiP and mitigate adverse maternal and neonatal outcomes.

Study context

Population
Pregnant women with overt diabetes in pregnancy (ODiP), gestational diabetes mellitus (GDM), pre-existing diabetes or normoglycaemia; studies published January 1, 2010, to May 31, 2024 (PubMed, Embase, Scopus)
Participants
16,135 pregnancies11 studies
Comparison
Overt diabetes in pregnancy (ODiP) vs GDM, pre-existing diabetes (PED) and normoglycaemia
Outcome
Maternal pregnancy outcomes, ODiP vs GDM

Pooled result

As reported in the abstract

ODiP vs GDMRelative risk (95% CI)
Gestational hypertension
1.93(1.45–2.58)
Pre-eclampsia
1.65(1.26–2.16)
Caesarean delivery
1.14(1.01–1.29)

Further pooled results

OutcomeRR (95% CI)
Adverse neonatal outcomes, ODiP vs GDMODiPvs GDMLarge for gestational age1.45 (1.13–1.85)
Adverse neonatal outcomes, ODiP vs GDMODiPvs GDMMacrosomia1.66 (1.05–2.64)
Adverse neonatal outcomes, ODiP vs GDMODiPvs GDMNeonatal hypoglycaemia1.52 (1.06–2.19)
Adverse neonatal outcomes, ODiP vs GDMODiPvs GDMStillbirth4.30 (1.69–10.98)

Postpartum diabetes

Risk of postpartum diabetes with ODiP vs GDM
6 times higher
Risk of postpartum diabetes with ODiP vs normoglycaemia
25 times higher
  • Variations in diagnostic criteria and postpartum follow-up duration contributed to heterogeneity

Original publication

Pregnancy and postpartum cardiometabolic outcomes among women with overt diabetes compared to women with normoglycaemia, gestational diabetes and pre‐existing diabetes: A systematic review and meta‐analysis. Diabetes Obes Metab. Published 11 April 2025. doi:10.1111/dom.16400

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