Group characteristics and hormone levels in serum in the two subgroups of subfertile men (hypo- and eugonadal) as compared to the 20 controls.

All data are presented as means (SD). Univariate regression analysis. P adjusted refers to the factors age, BMI and fertility status. HG, hypogonadal; EG, eugonadal; BMI, body mass index; TT, total testosterone; SHBG, sex hormone binding globuline; cFT, calculated free testosterone; LH, luteinizing hormone; NS, not significant; NA, not applicable;
*, P<0.05;
**, P<0.01.