Predictive factors for postpartum glucose intolerance in women with gestational diabetes mellitus.

Aim: The aim of this prospective cohort study was to evaluate the risk factors for postpartum glucose intolerance (GI) in women with gestational diabetes mellitus (GDM).

Method: A total of 140 women with GDM were enrolled. Of these, 115 underwent a 75-g oral glucose tolerance test (OGTT) at 12 weeks after delivery. Clinical factors and parameters in the antepartum 75-g OGTT associated with postpartum GI were evaluated by logistic regression analyses.

Results: Twenty-two (19.1%) of the 115 women with GDM developed postpartum GI. The univariate and multivariable logistic regression analyses revealed that low oral disposition index (DI) was a risk factor for postpartum GI (OR, 0.2; 95% CI, 0.04-0.7; p < 0.05), and that no clinical factors were associated with postpartum GI.

Conclusions: Lower oral DI on the antepartum 75-g OGTT may be a useful marker for identifying GDM women who are at high risk for postpartum GI.