The value of first-trimester platelet parameters in predicting gestational diabetes mellitus.

Objective: To explore the potential clinical value of platelet parameters in early pregnancy in predicting gestational diabetes mellitus (GDM).Methods: A total of 1188 singleton pregnant women were included in the regular antenatal examination and delivered in the First Affiliated Hospital of Sun Yat-Sen University from January 2016 to December 2018, who had no pre-pregnancy diabetes, no factors leading to elevated blood glucose level, no medical complications and no other obstetrical complications. Blood routine examination was performed at the 11-13+6 gestational weeks. All pregnant women underwent 75 g OGTT directly at the 24-28th gestational weeks. And they were divided into GDM group (n = 192) and non-GDM group (n = 996). Binomial Logistic regression analysis and receiver operating characteristic (ROC) curve were used to evaluate the ability of first-trimester platelet parameters to predict GDM, that is the sensitivity and specificity of platelet parameters at the optimal critical value.Results: There were significant differences in platelet count (PLT), platelet distribution width (PDW), mean platelet volume (MPV), and plateletcrit (PCT) between the GDM group and the normal group (p＜.05). After adjusting for the related factors such as maternal age, parity and pregestational body mass index (BMI), the MPV and PCT were correlated with the incidence of GDM (p＜.05). The area under the curve (AUC) of MPV was 0.577; 95% confidence interval (CI) 0.533-0.621 and that of PCT was 0.628. 95%CI 0.582-0.674. PLT and PDW were not correlated with GDM.Conclusion: MPV and PCT in early pregnancy are potential indicators in predicting gestational diabetes mellitus.