According to the stratified analysis by grade of hypertension, we found that weight (r = 0.232, p = 0.041) and age (r = 0.408, p = 0.025) were significantly correlated with PV in grade 1 and grade 2 patients, respectively; age (r = 0.274, p = 0.016), FBS (r = 0.314, p = 0.008), and PV (r = 0.328, p = 0.004) were significantly related to t-PSA in grade 1 level patients; negative correlation were also observed between serum Cl− (r = −0.302, p = 0.008), weight (r = −0.423, p = 0.02) and t-PSA levels in grade 1 level and grade 2 level, respectively. This evidence concerns the gene KLK3 and hypertensive disorder.