Subclinical hypothyroidism is not associated with neonatal morbidity in women with gestational diabetes mellitus: a case-control study.

Purpose: Placental modifications observed in women with subclinical hypothyroidism (SCH) should be associated with altered fetal development in women with gestational diabetes mellitus (GDM) and worsen perinatal outcome. We aim to determine if SCH is associated with neonatal morbidity in women with GDM.

Methods: A secondary analysis of data collected for a prospective population-based cohort study including all pregnant women with singleton pregnancies at diagnosis of GDM in a tertiary care university hospital.

Predictive factors of subsequent insulin requirement for glycemic control during pregnancy at diagnosis of gestational diabetes mellitus.

Objective: To determine maternal and biological parameters at diagnosis of gestational diabetes mellitus (GDM) as predictors of antenatal insulin therapy (AIT) for glycemic control.

Methods: In this planned secondary analysis of a prospective observational study, we recruited women diagnosed with GDM between July 1, 2014, and October 31, 2015. Maternal and biological parameters were analyzed as predictors of AIT using multivariable logistic regression analyses.