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Gestational diabetes mellitus in women with multiple pregnancies: is the metabolic abnormality milder?

F Caimari¹, A Ramos¹, I Pujol¹

¹a Department of Endocrinology and Nutrition , Hospital De La Santa Creu I Sant Pau , Barcelona , Spain .

The Journal of Maternal-Fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians

|October 7, 2015

Objective:

We aimed to compare maternal characteristics and dysglycemia after delivery in women with gestational diabetes mellitus (GDM) according to pregnancy being multiple (MP) or singleton (SP). The hypothesis was that women with GDM and MP would have a milder glycemic abnormality before and after pregnancy than those with SP.

Methods:

We performed a cohort study of 2908 women giving birth between 1986 and 2009. Logistic regression was performed to discriminate between MP and SP after anamnestic pre-pregnancy characteristics. Kaplan-Meier and Cox regression analyses were performed to assess if MP was independently associated with both impaired fasting glucose (IFG)/impaired glucose tolerance (IGT) and diabetes after delivery.

Results:

Family history of diabetes was the only independent anamnestic pre-pregnancy characteristic discriminating MP versus SP, OR 2.04 (95% CI 1.12, 3.70, p 0.019). The median time to progress to IFG/IGT was 7.52 years in SP (95% CI 6.92, 8.13) and 7.41 in MP (95% CI 3.84, 10.98), ns and the progression to DM did not differ. In addition, MP was not associated to IFG/IGT or to DM in the Cox regression analysis.

Conclusions:

In this cohort of women with GDM, those with MP did not demonstrate a lesser degree of dysglycemia after controlling for other pregnancy characteristics and pregnancy-independent factors.

Keywords:

Diabetes mellitus impaired fasting glucose impaired glucose tolerance postpartum glucose tolerance singleton pregnancy survival analysis

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