FIGURE 3.

Trajectories of infant lean mass (A), fat mass (B), and body fat percentage (C) in formula-fed and breastfed infants. Results are displayed as estimated means ± SEMs from repeated-measures ANOVA adjusted for sex, gestational age, race/ethnicity, maternal education level, insurance type (public or no insurance, private insurance), study site, and maternal BMI. Formula-fed infants gained significantly more lean mass than did breastfed infants (P < 0.001), although fat mass and body fat percentages were similar between groups (P = 0.57 and P = 0.61, respectively).