Thus, we performed multivariable regression with age, marital status, use of hormonal contraceptives and PSA-positivity as independent variables and determined that only the use of long-acting injectable contraceptives remained significantly associated with schistosomiasis status (OR = 0.151, p = 0.008; Table 2); inclusion of fewer variables in the model did not significantly change the OR for any of the factors under consideration. Here, KLK3 is linked to schistosomiasis.