Figure 2From: Associations of pre-pregnancy body mass index and gestational weight gain with pregnancy outcome and postpartum weight retention: a prospective observational cohort study Predicted optimal gestational weight gain (GWG) based on small for gestational age (SGA) and large for gestational age (LGA) birth outcomes. (a) Calculated by logistic regression model in 37 332 normal weight women. The vertical lines indicate IOM’s GWG recommendations for normal weight women. (b) Calculated by logistic regression model in 12 178 overweight women. The vertical lines indicate IOMs GWG recommendations for overweight women.Back to article page