a Localized PCa defined as stage T1 or T2;
Advanced PCa defined as stage T3 or T4 and or distant metastases;b Adjusting for the same variables in Table
2; c Medians of 42.83 ng/mg creatinine for
melatonin, 23.92 ng/mg creatinine for cortisol, and 1.81 for MT/C ratio.
* c Melatonin/Cortisol ratio;
**Prostate-specific antigen (ng/dL).