Reconciling the Effects of Screening on Prostate Cancer Mortality in the ERSPC and PLCO Trials

The ERSPC (European Randomized Study of Screening for Prostate Cancer) found that screening reduced prostate cancer mortality, but the PLCO (Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial) found no reduction.To evaluate whether effects of screening on prostate cancer mortality relative to no screening differed between the ERSPC and PLCO.Cox regression of prostate cancer death in each trial group, adjusted for age and trial....