Gestational diabetes & diabetes in pregnancy

Ethnic-specific oral glucose tolerance (oral glucose tolerance test (OGTT)) phenotypes in women with hyperglycemia in pregnancy

BMJ Open Diabetes Res CarePublished Retrospective cohort study

Authors' conclusion

Unique OGTT phenotypes exist across ethnic groups among women who developed HIP in a multi-ethnic Asian population.

Study context

Population
Women at KK Women's and Children's Hospital in 2019; Hyperglycemia in pregnancy (HIP) diagnosed by IADPSG criteria at 24–28 weeks; OGTT phenotypes: abnormal glucose at 0 hour only, 1 hour only, 2 hour only, or ≥2 timepoints (reference)508 with HIP
Participants
3,027 women
Exposure
OGTT phenotypes by ethnicity
Outcome
Fasting-only OGTT phenotype
Methodological detailssingle-centre, multinomial logistic regression adjusted for maternal age, parity and first-trimester BMI
  • Single-centre
  • Multinomial logistic regression adjusted for maternal age, parity and first-trimester BMI

Main finding

As reported in the abstract

Relative risk ratio (RRR)

3.05

Indians · higher risk with Indians

RRR

2.33

Chinese · higher risk with Chinese

Observational data: associations, not effects.

Further findings

HIP prevalence · 24-28 weeks

OutcomeRRR
2-hour postprandial OGTT phenotypeChinese vs Malays · increased risk with Chinese2.88
HIP prevalence — Overall HIP prevalence
508 (16.8%)

Original publication

Ethnic-specific oral glucose tolerance (OGTT) phenotypes in women with hyperglycemia in pregnancy. BMJ Open Diabetes Res Care. Published 4 October 2024. doi:10.1136/bmjdrc-2024-004331

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