Fig. 2From: Associations of elevated glucose levels at each time point during OGTT with fetal congenital heart diseases: a cohort study of 72,236 birthsPlot of mid-pregnancy glucose status according to congenital heart defect. OGTT cross group: Group 1 represents OGTT 0 h, 1 h and 2 h are all normal; Group 2 indicates that OGTT 0 h is abnormal, while OGTT 1 h and 2 h is normal; Group 3 indicates that OGTT 0 h is normal, while OGTT 1 h or 2 h is abnormal; Group 4 represents OGTT 0 h, 1 h or 2 h are all abnormalBack to article page