Gestational diabetes & diabetes in pregnancy

Association between maternal diabetes and neurodevelopmental outcomes in children: a systematic review and meta-analysis of 202 observational studies comprising 56·1 million pregnancies

Lancet Diabetes EndocrinolPublished Systematic review and meta-analysis of observational studies

Pooled result · Any neurodevelopmental disorder (studies adjusting for multiple confounders, n=98, 49%)Result — go to the resultRisk ratio 1.28 95% CI 1.24–1.31

Authors' conclusion

Maternal diabetes is associated with an increased risk of neurodevelopmental disorders and impaired neurodevelopmental performance in children. Further high-quality research is needed to establish causality and clarify the associations between specific types of diabetes and the full spectrum of neurodevelopmental disorders.

Study context

Population
Children born to mothers with diabetes; 110 (54%) studies of gestational diabetes, 80 (40%) of pre-gestational diabetes; 169 (84%) studies of children and adolescents aged up to 18 years202 studies, mother-child pairs
Participants
56,082,462 children
Comparison
Maternal diabetes vs no maternal diabetes
Outcome
Neurodevelopmental disorders as defined by DSM (Fifth Edition) and International Classification of Diseases 11th Revision
Methodological detailsrandom-effects models, prospectively registered
  • Random-effects models
  • Prospectively registered

Pooled result

As reported in the abstract

Any neurodevelopmental disorder (studies adjusting for multiple confounders, n=98, 49%)

Risk ratio

1.28

95% CI 1.24–1.31

Maternal diabetesvs Unexposed
risk ratio 1.28 (95% CI 1.24–1.31)

Further pooled results

OutcomeEstimate
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, autism spectrum disorder 1.25 (CI 1.20–1.31)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, attention-deficit hyperactivity disorder 1.30 (CI 1.24–1.37)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, intellectual disability 1.32 (CI 1.18–1.47)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, specific developmental disorders 1.27 (CI 1.17–1.37)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, communication disorder 1.20 (CI 1.11–1.28)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, motor disorder 1.17 (CI 1.10–1.26)
Specific neurodevelopmental disorders (studies adjusting for multiple confounders)Maternal diabetesvs Unexposedrisk ratio, learning disorder 1.16 (CI 1.06–1.26)

Neurodevelopmental disorders by diabetes type (pre-gestational vs gestational)

Pre-gestational diabetes, risk ratio
1.39 (1.34-1.44) (95% CI)
Gestational diabetes, risk ratio
1.18 (1.14-1.23) (95% CI)
Subgroup difference
P < 0.0001
  • Pre-gestational diabetes more strongly associated with most neurodevelopmental disorders than GDM

Studies adjusting for at least one key confounder

Maternal diabetes associated with increased risks of all types of neurodevelopmental disorders and lower intelligence and psychomotor scores

Original publication

Association between maternal diabetes and neurodevelopmental outcomes in children: a systematic review and meta-analysis of 202 observational studies comprising 56·1 million pregnancies. Lancet Diabetes Endocrinol. Published 7 April 2025. doi:10.1016/s2213-8587(25)00036-1

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.