Validity of Self-Reports of Return for Routine Repeat Screening in an Ovarian Cancer Screening Program
Cancer screening research relies on reliable and valid measurement of cancer screening behavior. Self-reports of screening constitute a cost-effective approach to measuring screening behavior; however, demonstration of suitable validity of these self-reports is critical. We evaluated the validity of...
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Veröffentlicht in: | Cancer epidemiology, biomarkers & prevention biomarkers & prevention, 2007-03, Vol.16 (3), p.490-493 |
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Zusammenfassung: | Cancer screening research relies on reliable and valid measurement of cancer screening behavior. Self-reports of screening
constitute a cost-effective approach to measuring screening behavior; however, demonstration of suitable validity of these
self-reports is critical. We evaluated the validity of self-report of return for repeat, routine, annual transvaginal sonography
(TVS) screening for ovarian cancer. Participants ( n = 535) in a university-based ovarian cancer screening program for asymptomatic, average risk women completed a telephone
interview 18 months following an initial, baseline TVS screening test. Self-reports of return for a repeat, routine ovarian
cancer screening test since baseline were obtained and compared with objective records of repeat screening from the screening
program database. Overall agreement of self-reports and objective records of ovarian cancer screening was 97.57% ( κ = 0.94). Sensitivity was 0.98, specificity was 0.96, positive predictive value was 0.98, and negative predictive value was
0.96. The month of last screening was accurately identified by 80% of participants. It was concluded the validity of self-reports
of TVS screening for ovarian cancer is very high and may even exceed the validity of self-reports of participation in breast,
cervical, and colorectal cancer screening over similar recall periods. Consequently, self-reports of TVS screening may serve
as a cost-effective substitute for more objective methods of assessing TVS screening behavior. (Cancer Epidemiol Biomarkers
Prev 2007;16(3):490–3) |
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ISSN: | 1055-9965 1538-7755 |
DOI: | 10.1158/1055-9965.EPI-06-0433 |