In general, levels of vitamins A, D, E and beta carotene were within the normal range and increased in both groups during treatment (Table 7). The levels of estradiol among girls decreased from baseline in the orlistat group compared with a slight increase in the placebo group (–7.5 pg/mL vs +0.7 pg/mL; P = .05) at study end. There was no significant difference in height gain between groups (Table 3). Participants in both groups experienced normal sexual maturation, as shown by changes in Tanner stage over the 52 weeks of the study (Table 8).