Prostate-specific antigen levels among the schistosomiasis infected group (1.208 ± 1.557 ng/mL) were significantly higher than for the schistosomiasis uninfected group (0.7721 ± 1.173 ng/mL; p = 0.0221) as shown in Fig. 2. This evidence concerns the gene KLK3 and schistosomiasis.