Efficacy of urine loss ratio for prognosis of urinary continence after radical prostatectomy: A retrospective cohort study in a single Japanese institution.

Classifying patients into three groups based on their urine loss ratios is potentially useful for urinary continence prognosis. Smoking and obesity were risk factors for continued urinary incontinence, although the prognostic accuracy was expected to improve when considering the severity of the urine loss ratio.