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Pre-pregnancy metabolic syndrome and insulin administration in gestational diabetes: A nationwide population-based
Bo-Yeon Kim1, Bongseong Kim2, Kyungdo Han2
1Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea.
Background:
The present study aimed to evaluate whether mothers with obesity/central obesity and metabolic syndrome before gestation are at higher risk of insulin administration in gestational diabetes mellitus (GDM) to diminish the burden of insulin use during pregnancy.
Methods:
This was a population-based retrospective cohort study conducted using data from the National Health Information Database of Korea. We identified all deliveries from January 1, 2011 to December 31, 2015 (N = 1,214,655). Among the deliveries, we identified mothers with pre-pregnancy health checkup records and without previous diabetes history (N = 325,208). Hazards of insulin use in GDM were calculated based on pre-pregnancy obesity/central obesity and metabolic syndrome.
Results:
Hazards of insulin use in GDM increased proportionately with an increase in the pre-pregnancy body mass index (BMI) and waist circumference (WC). After the adjustment for clinical factors, high BMI group (≥30 kg/m2) and high WC group (≥100 cm) were significantly associated with higher hazard ratios (HRs) (HR 4.161, 95% Confidence interval [CI] 3.381-5.121, P < 0.001 and HR 2.563, 95% CI 1.769-3.712, P < 0.001, respectively). The presence of pre-pregnancy metabolic syndrome significantly increased the hazard of insulin use in GDM (0.54% vs. 5.04%). In the presence of obesity (BMI ≥ 25 kg/m2) or central obesity (WC ≥ 85 cm), HRs of insulin use in GDM were 2.637 (95% CI 2.275-3.056) and 1.603 (95% CI 1.023-2.511), respectively, after adjustment for clinical factors.
Conclusions:
The presence of pre-pregnancy obesity/central obesity and metabolic syndrome in Korean mothers is associated with increased risk of insulin use in GDM.
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