Gestational diabetes & diabetes in pregnancy

Combining HbA1c and insulin resistance to assess the risk of gestational diabetes mellitus: A prospective cohort study

Diabetes Res Clin PractPublished Prospective cohort study

Authors' conclusion

The incidence of GDM increased with increasing HbA1c and HOMA-IR, and the risk of GDM was significantly increased when both HbA1c and HOMA-IR were elevated. This finding may help to identify high-risk women for GDM early in pregnancy and provide timely interventions.

Study context

Population
Pregnant women with HbA1c, fasting insulin and fasting glucose (FG) measured at 15–20 weeks of gestation and oral glucose tolerance test (OGTT) at 24–28 weeks, Hangzhou, China
Participants
462 women
Exposure
Combinations of HbA1c and homeostasis model assessment insulin resistance (HOMA-IR) for gestational diabetes mellitus (GDM) risk
Outcome
GDM occurrence
Follow-up
OGTT at 24-28 weeks

Main finding

As reported in the abstract

GDM

Developed GDM

136

29.44%

Observational data: associations, not effects.

Further findings

GDM risk in women <35 years

No such risk observed in pregnant women <35 years

FG at 24-28 weeks among GDM-positive women

Significantly higher FG in the high HOMA-IR and HbA1c group

Original publication

Combining HbA1c and insulin resistance to assess the risk of gestational diabetes mellitus: A prospective cohort study. Diabetes Res Clin Pract. Published 17 April 2023. doi:10.1016/j.diabres.2023.110673

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