A new study shows that the percent of men who are sexually dysfunctional after treatment for prostate cancer is considerably higher than many quoted figures. Fewer than half of the men who were sexually functional before treatment were functional two years after treatment. well.blogs.nytimes.com/2011/09/20/predicting-sexual-recovery-after-prostate-cancer/?ref=health
The actual article is rather intensely statistical, but here is the linkjama.ama-assn.org/content/306/11/1205.full.pdf+html
The sample followed abut 1,100 men. The authors took into account the type of treatment (in surgical treatment, nerve sparing or non-nerve sparing) , age, sexual function before treatment, PSA at treatment, cancer severity, and other variables.