“…In contrast, a recent publication by the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial data showed a 90% PSA contamination rate in the control arm, which seriously questions the value of the reported outcomes. 2 Even among Asian countries, there were significant differences in the trends of prostate cancer death. In countries such as Australia, New Zealand, Japan and Singapore, where the exposure rate of PSA screening is relatively high, the number of prostate cancer deaths has decreased; however, in other countries such as the Philippines and Thailand, where PSA screening is rare, the death rate continues to increase.…”