Gestational diabetes & diabetes in pregnancy

Gestational Diabetes Mellitus, Glycemic Management Trajectories, and Offspring Growth Patterns and Obesity Risk

Diabetes CarePublished Population-based prospective cohort study

Authors' conclusion

Early and sustained glycemic management after GDM diagnosis was associated with lower childhood obesity risk comparable to that in offspring unexposed to GDM. These findings suggest an opportunity for prenatal risk stratification and prevention for children at higher obesity risk.

Study context

Population
Individuals who delivered at Kaiser Permanente Northern California (2011–2017) and their offspring with BMI measured at ages 2–10 years through 2022; optimal glycemic management ≥80% of glucose values meeting ADA targets14,870 (7.2%) with gestational diabetes mellitus (GDM)
Participants
206,464 individuals
Exposure
Maternal glycemic management trajectories in GDM vs no GDM exposure
Outcome
Offspring BMI and obesity risk
Follow-up
By age 10
Methodological detailsadjusted generalized estimating equations
  • Adjusted generalized estimating equations

Main finding

As reported in the abstract

Each group vs unexposed to GDMRisk ratio (obesity) (95% CI)
T1
1.07(0.91–1.26)
T2
1.37(1.18–1.59)
T3
1.53(1.29–1.81)
T4
1.62(1.33–1.98)
T1
β (BMI) 0.27 (95% CI −0.13 to 0.66)
T2
β (BMI) 1.00 (95% CI 0.55–1.46)
T3
β (BMI) 1.22 (95% CI 0.67–1.76)
T4
β (BMI) 2.15 (95% CI 1.48–2.49)

Observational data: associations, not effects.

Further findings

Associations were attenuated but persisted after adjustment for prepregnancy BMI

Original publication

Gestational Diabetes Mellitus, Glycemic Management Trajectories, and Offspring Growth Patterns and Obesity Risk. Diabetes Care. Published 4 March 2026. doi:10.2337/dc25-1643

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