Materials and methods
GDM
GDM, SECONDARY
This study presents a secondary analysis of a randomized community non-inferiority trial among pregnant women. Detailed description of the methods used has been reported previously (For current analysis, we restructured the original data. In this respect, those pregnant women with FPG values range 5.1-5.6 mmol/l in the first trimester of gestation were selected form original data (n=3297) and included in this secondary analysis. Then, they were classified to either the (i) intervention group who received treatment for GDM along with usual prenatal care (n=1,198), (ii) control group who received usual-prenatal-care (n=2,099). All women in the control group were re-screened for GDM between 24–28 weeks of gestation using either a one-step or a two-step screening approach. It should be noted that receiving GDM treatment in the intervention group and or usual prenatal care in controls were defined by original study randomization. On the other hand, the current study’s restructuring of the data and classification of participants into the intervention and control groups did not affect the original randomization process of the original trial. Therefore, the control group in the current study was not influenced by any new arbitrary decisions or approaches made during the secondary analysis.All of study participants were followed-up until delivery, and their outcomes were registered in detail. The guidelines recommended by the American College of Obstetricians and Gynecologists (ACOG) 2013 (Flowchart of the study. T