Figure. Estimated yield of screening with prostate-specific antigen (PSA) testing or with PSA testing and digital rectal examination (DRE). The number of cancer cases detected would be smaller after repeated annual screening. * For men in their 50s, n = 50; for men in their 70s, n = 270. For men in their 50s, n = 150; for men in their 70s, n = 400. For men in their 50s, n = 17; for men in their 70s, n = 90. For men in their 50s, n = 30; for men in their 70s, n = 100. ||For men in their 50s, n = 12; for men in their 70s, n = 63. ¶ For men in their 50s, n = 21; for men in their 70s, n = 70. In all footnotes, numbers are approximate.