The effects of tailoring knowledge acquisition on colorectal cancer screening self-efficacy.
Interventions tailored to psychological factors such as personal and vicarious behavioral experiences can enhance behavioral self-efficacy but are complex to develop and implement. Information seeking theory suggests tailoring acquisition of health knowledge (without concurrent psychological factor tailoring) could enhance self-efficacy, simplifying the design of tailored behavior change interventions. To begin to examine this issue, the authors conducted exploratory analyses of data from a randomized controlled trial, comparing the effects of an experimental colorectal cancer screening intervention tailoring knowledge acquisition with the effects of a nontailored control on colorectal cancer screening knowledge and self-efficacy in 1159 patients comprising three ethnicity/language strata (Hispanic/Spanish, 23.4%, Hispanic/English, 27.2%, non-Hispanic/English, 49.3%) and 5 recruitment center strata. Adjusted for study strata, the mean postintervention knowledge score was significantly higher in the experimental group than in the control group. Adjusted experimental intervention exposure (B = 0.22, 95% CI [0.14, 0.30]), preintervention knowledge (B = 0.11, 95% CI [0.05, 0.16]), and postintervention knowledge (B = 0.03, 95% CI [0.01, 0.05]) were independently associated with subsequent colorectal cancer screening self-efficacy (p < .001 all associations). These exploratory findings suggest that tailoring knowledge acquisition may enhance self-efficacy, with potential implications for tailored intervention design, but this implication requires confirmation in studies specifically designed to examine this issue.
a Department of Family and Community Medicine , University of California Davis School of Medicine , Sacramento , California , USA.
Anthony
A
Jerant
Patricia
P
To
Peter
P
Franks
D000368:Aged; D015179:Colorectal Neoplasms / Q000517:prevention & control*; D054626:Consumer Health Information; D055088:Early Detection of Cancer / Q000523:psychology*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D057226:Information Seeking Behavior; D008297:Male; D008875:Middle Aged; D010353:Patient Education as Topic / Q000379:methods*; D020377:Self Efficacy