RT Journal Article SR Electronic T1 Patient Knowledge and Qualities of Treatment Decisions for Localized Prostate Cancer JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 288 OP 297 DO 10.3122/jabfm.2017.03.160298 VO 30 IS 3 A1 Daum, Lisa M. A1 Reamer, Elyse N. A1 Ruterbusch, Julie J. A1 Liu, Joe A1 Holmes-Rovner, Margaret A1 Xu, Jinping YR 2017 UL http://www.jabfm.org/content/30/3/288.abstract AB Background: Controversy surrounds treatment for localized prostate cancer (LPC).Objectives: To assess men's localized prostate cancer (LPC) knowledge and its association with decision-making difficulty, satisfaction and regret.Methods: Population-based sample of 201 men (104 white, 97 black), ≤ 75 years with newly diagnosed LPC completed a self-administered survey.Results: Mean age was 61(±7.6) years; two-thirds had less than a Bachelor's degree. Mean LPC knowledge was low, 5.87 (±2.53, maximum score 11). More than a third of men who received surgery or radiation did not know about serious long-term treatment side effects. Fewer than half of the men correctly answered comparative side effect and survival benefit questions between surgery and radiation. Knowledge gaps were greatest among black men, men with lower education, single men. Tumor aggressiveness (i.e. PSA level, Gleason score) and treatment choice were not associated with knowledge. Knowledge was not associated with decisional satisfaction or regret. However, greater knowledge was associated with greater decision-making difficulty (P = .018).Conclusions: Significant LPC knowledge gaps existed across groups, with greater knowledge gaps among black men. The association of decision-making difficulty with knowledge was independent of race. Better patient education is needed, but may not alleviate men's decision-making difficulty due to inherent scientific uncertainty.