Gestational diabetes & diabetes in pregnancy

Association of Historical Redlining With Gestational Diabetes Mellitus: The Mediating Role of BMI and Area Deprivation Index

Diabetes CarePublished Retrospective cohort study

Authors' conclusion

Historic redlining is associated with an increased risk of GDM, mediated by maternal obesity and neighborhood deprivation. Future research is needed to explore the complex pathways linking redlining to pregnancy outcomes.

Study context

Population
Singleton pregnancies, Kaiser Permanente Southern California health records (2008–2018), residential addresses in Home Owners' Loan Corporation (HOLC)-graded zones
Participants
86,834 singleton pregnancies
Exposure
HOLC grades B, C and D vs grade A neighborhoods
Outcome
GDM
Methodological detailsmixed-effect logistic regression, mediation analysis by inverse odds ratio weighting
  • Mixed-effect logistic regression
  • Mediation analysis by inverse odds ratio weighting

Main finding

As reported in the abstract

Risk of GDM
Each group vs AAdjusted odds ratio (95% CI)
B
1.20(0.99–1.44)
C
1.22(1.02–1.47)
D
1.30(1.08–1.57)
Gestational diabetes mellitus (GDM) case patients
10,134 (11.67%)

Observational data: associations, not effects.

Further findings

Mediation of increased GDM risk in redlined areas

Mediated by prepregnancy BMI
44.2%
Mediated by area deprivation index (ADI)
64.5%

Original publication

Association of Historical Redlining With Gestational Diabetes Mellitus: The Mediating Role of BMI and Area Deprivation Index. Diabetes Care. Published 12 February 2025. doi:10.2337/dc24-2147

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

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