After 13 years of follow-up, men who underwent annual screening for prostate cancer were no less likely to die of prostate cancer than were men who received usual care and opportunistic screening.Cumulative mortality rates from prostate cancer differed by a statistically insignificant rate of 0.3 deaths per 10,000 person years in the intervention and usual-care arms of the Prostate, Lung, Colorectal, and Ovarian (PLCO) screening trial, published online Jan. 6 in the Journal of the National Cancer...