Fig. 1. Distribution of the prevalence of metabolic syndrome (MetS) and the number of MetS components depending on total testosterone (TT) and serum homocysteine (Hcy) quartiles in 8,606 male workers. (A) The number of MetS components was significantly different from the first (Q1) to the fourth (Q4) TT quartiles (P<0.001). However, the number of MetS components was not related to serum Hcy quartile (P=0.361). (B) The prevalence of MetS showed similar relationships with TT and serum Hcy quartiles (P<0.001 and P=0.361, respectively).