Fig. 3.

Prevalence of sex acts by sexual trajectory. Trajectory classes showed distinct prevalence of different sexual acts collapsed across time. The single and multiple classes reported more vaginal sex than did the rare partners class. Although there was a main effect of class on oral sex, pair-wise comparisons did not survive correction for multiple comparisons. The Multiple trajectory class reported the most anal sex, followed by the Single and Rare trajectories, with all means being significantly different in post hoc tests. Error bars are standard error of the mean