Gestational diabetes & diabetes in pregnancy

Lifetime history of gestational diabetes and cognitive function in parous women in midlife

DiabetologiaPublished Secondary analysis of the prospective Nurses' Health Study II cohort

Authors' conclusion

Women with a history of GDM had poorer cognition than those without GDM. If replicated, our findings support future research on early risk modification strategies for women with a history of GDM as a potential avenue to decrease their risk of cognitive impairment.

Study context

Population
Parous women (≥1 birth at ≥18 years) who completed a cognitive assessment, free of CVD, cancer and diabetes before first birth; mean age 62.0 years (SD 4.9) at assessment
Participants
15,906 women
Comparison
History of gestational diabetes mellitus (GDM) vs no history of GDM
  • GDMn = 749
Primary endpoint
Composite z scores for psychomotor speed/attention, learning/working memory and global cognition (Cogstate brief battery)
Methodological detailscognition sub-study (2 waves), mediation analysis by T2D
  • Cognition sub-study (2 waves)
  • Mediation analysis by T2D

Primary result

As reported in the abstract

Cognitive function (composite z scores)

Β (psychomotor speed/attention)

−0.08

95% CI −0.14 to −0.01

GDM

Β (global cognition)

−0.06

95% CI −0.11 to −0.01

GDM

Original publication

Lifetime history of gestational diabetes and cognitive function in parous women in midlife. Diabetologia. Published 6 September 2024. doi:10.1007/s00125-024-06270-w

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