Validation of Self-Reported Colorectal Cancer Screening Behaviors Among Appalachian Residents

Authors

  • Paul L. Reiter Ph.D.,

    Corresponding author
    1. Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
    2. Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, Ohio
    • Division of Cancer Prevention and Control, College of Medicine, The Ohio State University, Columbus, Ohio
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  • Mira L. Katz Ph.D.,

    1. Division of Cancer Prevention and Control, College of Medicine, The Ohio State University, Columbus, Ohio
    2. Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
    3. Division of Health Behavior and Health Promotion, College of Public Health, The Ohio State University, Columbus, Ohio
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  • Jill M. Oliveri Dr.P.H.,

    1. Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
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  • Gregory S. Young M.S.,

    1. Center for Biostatistics, The Ohio State University, Columbus, Ohio
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  • Adana A. Llanos Ph.D.,

    1. Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
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  • Electra D. Paskett Ph.D.

    1. Division of Cancer Prevention and Control, College of Medicine, The Ohio State University, Columbus, Ohio
    2. Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
    3. Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, Ohio
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Correspondence to:

Paul L. Reiter, Division of Cancer Prevention and Control, College of Medicine, The Ohio State University, Suite 525, 1590 North High Street, Columbus, OH 43201. E-mail: Paul.Reiter@osumc.edu

Abstract

Objectives

We determined the validity of self-reported colorectal cancer (CRC) screening data provided by Appalachian Ohio residents and identified correlates of providing accurate data.

Design and Sample

We conducted cross-sectional telephone interviews between September 2009 and April 2010. Our study included Appalachian Ohio residents (= 721) ages 51–75 years.

Measures

We compared self-reported CRC screening data to medical records to determine validity. Multivariable logistic regression was used to identify correlates of providing accurate self-reported screening data.

Results

About 68% of participants self-reported having any CRC screening test within recommended guidelines, whereas medical records indicated that only 49% were within guidelines (concordance = 0.76). Concordance was higher for flexible sigmoidoscopy and fecal occult blood test compared with colonoscopy, although sensitivity and positive predictive value were much higher for colonoscopy. Participants overreported CRC screening behaviors for all tests. Participants who had a regular checkup in the last 2 years (OR = 2.78, 95% CI: 1.15–6.73), or who self-rated their health as good or better (OR = 1.88, 95% CI: 1.12–3.16) were more likely to provide accurate screening data.

Conclusions

Many participants failed to provide accurate CRC screening data, and validity varied greatly across individual CRC screening tests. Future CRC screening studies among Appalachian residents should use medical records, if possible, to determine screening histories.

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