Schaeffer EM, Carter HB, Kettermann A, Loeb S, Ferrucci L, Landis P, Trock BJ, and Metter EJ.
“Prostate Specific Antigen Testing Among the Elderly: When to Stop?”
Journal of Urology, April 2009; 181: 1606.
Link: http://www.ncbi.nlm.nih.gov/pubmed/19246059
Men ages 75-80 with PSA levels <3 ng/ml are unlikely to die of or experience aggressive prostate cancer during their remaining life, suggesting that PSA testing might be safely discontinued for these men.