Prostate Cancer May Be Over-Diagnosed
Study: Many Men Get Unneeded Prostate Cancer Treatments
This 2002 CBS News article reports on a study in which Dr. Etzioni found, "Over those 10 years [1988-1998], of the men diagnosed as a result of the PSA test, up to 30 percent may have been treated unnecessarily." Many older men may have prostate tumors that will never become life-threatening because they will die of other causes before the cancer has a chance to spread.
PSA velocity: Useful in cancer screening?
Ruth Etzioni and colleagues question whether PSA velocity adds information in the early detection of prostate cancer. (2007)
PHS study finds ethnic differences in treatment of prostate cancer
African Americans with early stage cancer less likely to receive aggressive hormone therapy than Caucasians. (2005)
Improving early detection of prostate cancer
Ruth Etzioni's study is first to formally evaluate the combined PSA test's ability to distinguish between true cancers and benign conditions. (2004)
Study puts PSA screening to the test
First comprehensive evaluation of prostate-cancer prevalence in men with 'normal' PSA levels may fuel debate over truth in testing. (2004)
Prostate-cancer testing disparities
PHS study finds significant differences in the frequency of prostate-specific antigen testing between African- Americans and Caucasians. (2003)
Etzioni study estimates that a third of older men given a routine blood test and identified with prostate cancer may never experience its symptoms. (2002)
Cause(s?) and effect
Blood test cannot fully explain drop in prostate cancer deaths, says computer model by Etzioni. (1999)