Assessment of sperm capacitation status of samples collected from eight different research centers. (A) Patterns of live acrosome-reacted (AR pattern). (B) Patterns of live capacitated (B pattern). (C) Patterns of live noncapacitated (F pattern). Data are presented as mean ± SE. Superscripts a, b, and c indicate significant differences between sperm parameters as assessed by one-way ANOVA (p < 0.05, n = 9).