Fig. 2

Log ORs and 95% CIs for rate of GWG with risk of preterm birth (a) and LGA (b). Abbreviations: BMI, body mass index; CI, confidence interval; GWG, gestational weight gain; LGA, large-for-gestational age; OR, odds ratio. Adjusted for study centers, age, gestational age at delivery, education, drinking during pregnancy, passive smoking, annual household income, number of parity, and prepregnancy BMI; Preterm birth was not adjusted for gestational age at delivery