BACKGROUND: The impact of decision aids on prostate cancer screening outcomes has been inconsistent.
PURPOSE: We assessed whether pre-existing attitudes moderated the impact of decision aids on screening.
METHODS: Men aged 45-70 (56.2 % Caucasian, 39.9 % African-American) were randomly assigned to a print decision aid (N = 630), a web decision aid (N = 631), or usual care (N = 632). Telephone interviews assessed pro/con screening attitudes and screening behaviors at baseline, 1-month and 13-months post-randomization.
RESULTS: Logistic regression analyses revealed significant arm by attitude interactions: Higher baseline cons scores predicted lower screening in the print (OR = 0.60 (95 % CI: 0.40, 0.92)) and web (OR = 0.61 (95 % CI: 0.40, 0.91)) arms but not in usual care (OR = 1.34 (95 % CI: 0.90, 2.00)).
CONCLUSIONS: The decision aids amplified the impact of men's baseline attitudes about limitations of screening: Compared to the usual care arm, men in both decision aid arms were less likely to be screened when they perceived more limitations of screening.
Starosta AJ, Luta G, Tomko CA, Schwartz MD, Taylor KL. Are you the author?
Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3300 Whitehaven Street, NW, Suite 4100, Washington, DC, 20007, USA.
Reference: Ann Behav Med. 2015 Feb 28. Epub ahead of print.