aAdjusting for age(<65 vs.≥65 yr),
personal habits of smoking, alcohol, betel nut, family history of
prostate cancer, and prostatespecific antigen level (<10 vs.
≥10 ng/mL). bMedians of 42.83 ng/mg
creatinine for melatonin, 23.92 ng/mg. creatinine for cortisol, and 1.81
for MT/C ratio. cMelatonin/Cortisol;dProstate-specific antigen.