Gestational Outcomes Related to the Occurrence of Gestational Diabetes Mellitus: A Cohort Study

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Abstract
Background: Gestational diabetes mellitus (GDM) is the main cause of hyperglycemia in pregnancy and is related to complications throughout the gestational and post-partum period. Objectives: To analyze the pregnancy outcomes related to the occurrence of GDM in women and their offspring. Methods: Third-trimester pregnant women were interviewed and monitored until childbirth. The diagnosis of GDM, blood glucose ≥ 92 mg/dL, was defined by the criteria of the International Association of the Diabetes and Pregnancy Study Groups (IADPSG). Results: A total of 138 women participated, and there were 136 births (due to 2 fetal losses); 23 (16.7%) were diagnosed with GDM. The risk of complications during childbirth was higher among pregnant women with GDM (RR 3.40; 95%CI 1.65–7.00), as was the occurrence of cesarean birth (RR 1.9; 95%CI 1.46–2.59). The occurrence of preterm birth did not show a significant difference between GDM/non-GDM groups. There was a non-significant association in adjusted analyses of macrosomia (birth weight ≥ 4000 g) among newborns born to mothers with GDM (RR 1.27; 95%CI 0.67–2.38). For newborns born to pregnant women with GDM, there was a higher risk for the following outcomes: large for gestational age (LGA) (3.29 95%CI 1.62–6.64), low Apgar (4.98 95%CI 2.32–10.69), and birth asphyxia (9.51 95%CI 3.42–26.48). Conclusions: The findings reinforce that GDM is an important risk factor for adverse pregnancy outcomes for women and their offspring.
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  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (001)

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