Population-attributable fractions and 95% confidence intervals of large for gestational age at the 90th percentile or greater associated with excessive gestational weight gain (GWG), stratified by body mass index categories and race or ethnicity. Adjusted for gestational diabetes mellitus, inadequate gestational weight gain, age, parity, and nativity. *The percentage of gestational weight gain by body mass index and race or ethnicity shown in Figure 2.Fig. 3. Kim. Contributions to Large-for-Gestational-Age Births. Obstet Gynecol 2014.