Gestational diabetes & diabetes in pregnancy

Heterogeneity of Gestational Diabetes and Risk for Adverse Pregnancy Outcome: A Cohort Study

J Clin Endocrinol MetabPublished Prospective cohort study

Authors' conclusion

GDM exhibits distinct insulin physiology profiles. Pregnancy outcome varies between each phenotype. These findings provide evidence on risk stratification and diverse strategies for the treatment of GDM.

Study context

Population
Pregnant women who underwent a 75-g OGTT, followed until delivery
Participants
2,050 women
Exposure
GDM phenotypes: gestational-IFG vs gestational-IGT vs NGT
  • NGTn = 936reference
  • gestational-IFGn = 378
  • gestational-IGTn = 736
Outcome
Insulin physiology (gestational-IFG vs gestational-IGT)
Follow-up
Mid-pregnancy

Main finding

As reported in the abstract

  • gestational-IFG vs gestational-IGT: P < 0.01
  • gestational-IFG vs gestational-IGT: P < 0.01
  • gestational-IGT vs gestational-IFG: P < 0.05

Observational data: associations, not effects.

Further findings

OutcomeRR (95% CI)
Excessive gestational weight gaingestational-IFGvs gestational-IGT1.62 (1.18–2.23)
Large-for-gestational-age infantsgestational-IFGvs gestational-IGT1.45 (1.03–2.03)
Neonatal brain injurygestational-IGTvs NGTIncreased risk in gestational-IGT2.03 (1.04–4.09)
Preterm birthgestational-IGTvs gestational-IFG1.80 (1.02–3.36)
OutcomeP value
Neonatal brain injurygestational-IFG vs NGT · risk not increased in gestational-IFGP = 0.439

Original publication

Heterogeneity of Gestational Diabetes and Risk for Adverse Pregnancy Outcome: A Cohort Study. J Clin Endocrinol Metab. Published 24 October 2024. doi:10.1210/clinem/dgae754

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