Validity of self-reported colorectal cancer test use in different racial/ethnic groups.
cross_sectional · Level IV
Where this comes from
- Record sourced from PubMed, PMID 21566004.
- Also identified by DOI 10.1093/fampra/cmr026 and PMC identifier PMC1913670.
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Abstract
OBJECTIVE: Prevalence of colorectal cancer (CRC) screening is ascertained by self-reported screening, yet little is known about the accuracy of this method across different racial/ethnic groups, particularly Hispanics. The purpose of this study was to compare the accuracy of CRC self-report measures across three racial/ethnic groups. METHODS: During 2004 and 2005, 271 white, African-American and Hispanic participants were recruited from a primary care clinic in Southeast Texas, and their CRC testing history based on self-report and medical record (the 'gold standard') were compared. RESULTS: Over-reporting was prevalent. Overall, up-to-date CRC test use was 57.6% by self-report and 43.9% by medical record. Racial/ethnic group differences were most pronounced for Hispanics in whom sensitivity was significantly lower for any up-to-date testing, fecal occult blood testing, flexible sigmoidoscopy and double contrast barium enema. There were no statistically significant differences across groups for over-reporting, specificity or concordance. CONCLUSIONS: Self-report prevalence data are overestimating CRC test use in all groups; current measures are less sensitive in Hispanics.