TitleChanges in risk perceptions in relation to self-reported colorectal cancer screening among first-degree relatives of colorectal cancer cases enrolled in a randomized trial.
Publication TypeJournal Article
Year of Publication2011
AuthorsGlenn, BA, Herrmann, AK, Crespi, CM, Mojica, CM, L Chang, C, Maxwell, AE, Bastani, R
JournalHealth Psychol
Volume30
Issue4
Pagination481-91
Date Published07/2011
ISSN1930-7810
KeywordsAdult, Adult Children, Aged, Aged, 80 and over, California, Colorectal Neoplasms, Early Detection of Cancer, Female, Health Behavior, Health Knowledge, Attitudes, Practice, Humans, Male, Middle Aged, Registries, Risk Assessment, Self-Assessment, Siblings
Abstract
 

OBJECTIVE: This secondary data analysis was conducted to evaluate the applicability of the Risk Reappraisal Hypothesis, which has been proposed to explain the influence of performing a health behavior on perceived risk. Data were collected in the context of a randomized trial, which found that an individually tailored, multicomponent intervention was successful in increasing colorectal cancer (CRC) screening among first-degree relatives of CRC cases.

METHOD: The ethnically diverse study sample (N = 841; 29% Latino, 21% African American, 20% Asian) consisted of adult siblings and children (40-80 years) of CRC cases, identified through the California Cancer Registry. Data were collected at baseline and at 6- and 12-month follow-up. Changes in self-reported risk perception (perceived likelihood of developing CRC) were examined over the study period in relation to study condition and screening status.

RESULTS: Greater increases in perceived risk were observed among intervention versus control-group participants over the study period, but increases were limited to intervention participants who had not been screened. We also examined trajectories of perceived risk in relation to timing of screening receipt (e.g., before 6 months, 6-12 months, never). Continued upward shifts in risk were observed during the study period among intervention participants not screened during the study. In contrast, participants screened by 6 months displayed a reduction or leveling off in perceived risk between 6- and 12-month follow-up.

CONCLUSION: Results provide support for the applicability of the Risk Reappraisal Hypothesis within a high-risk sample enrolled in a CRC screening promotion trial. Future research is needed to explore the impact of short-term risk reductions on future CRC screening behavior.

DOI10.1037/a0024288
Alternate JournalHealth Psychol
PubMed ID21744967
PubMed Central IDPMC3201806
Grant ListR01 CA075367-03 / CA / NCI NIH HHS / United States