Table 2. Semen parameters, serum IGF-1 level, and seminal plasma IGF-1 level of each group.
Values are presented as mean±standard deviation.
Group A, normal semen parameters; Group B, abnormal sperm motility; Group C, abnormal sperm morphology; Group D, more than two abnormal semen parameters; IGF-1, insulin-like growth factor-1.
a)p<0.001; b)p<0.05; c)p<0.01; multiple comparison test.