摘要 : Introduction Gestational diabetes mellitus is a type of glucose intolerance that first manifests itself during pregnancy. A pregnant woman and her unborn child are at an increased risk of pregnancy complications and poor neonatal ... 展开 Introduction Gestational diabetes mellitus is a type of glucose intolerance that first manifests itself during pregnancy. A pregnant woman and her unborn child are at an increased risk of pregnancy complications and poor neonatal outcomes. Pregnancy diabetes affects one out of every 200 women. Therefore, this study aims to identify the determinants of gestational diabetes mellitus among pregnant women attending an antenatal care service in Gedeo Zone, Ethiopia. Methods A facility-based case-control study design was employed from 25 January 2020 through 25 April 2020. The study included 80 cases and 240 control groups of pregnant women. Face-to-face interviews with structured questionnaires were used to collect data. For analyses, data was entered into Epidata version 3.1 and exported to the Statistical Package for the Social Sciences (SPSS) version 23.0. Variables with p .25 or lower in bivariate analysis were fitted to multivariable analysis. A multivariable logistic regression model with a 95% confidence interval and a p-Value of .05 was used. Results Family history of diabetes mellitus [AOR 1.837; 95% CI (1.06-3.18)], history of spontaneous abortion [AOR 2.39; 95% CI 1.33-4.31), history of still birth [AOR 2.240 (1.222-4.105)], and history of delivery of a macrocosmic baby in the previous pregnancy [AOR 1.99 (1.157-3.43)] were found to be predictors of GDM. Conclusion Previous adverse pregnancy outcomes were found to be the main predictors of GDM. Women with gestational diabetes mellitus should be followed after delivery in order to monitor hyper-glycemic status. 收起