Test-retest reliability of self-reported mammography in women veterans

Semilla Rivera, Sally W. Vernon, Jasmin A. Tiro, Sharon Coan, Deborah del Junco, Wen Chan, Ann Coker

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Background.: Mammography self-report is used to monitor screening and evaluate intervention trends; however, few studies have examined reliability. Methods.: Reliability of self-reported lifetime number of mammograms, most recent mammogram date, and predictors of reliability were assessed using data from Project H.O.M.E. The study population was 2494 women 52 years and over, listed in the U.S. National Registry of Women Veterans, with no history of breast cancer, who completed both baseline (2000-2002) and year 1 (2002-2003) surveys. Results.: Reliability of lifetime number of mammograms was 60.9% for exact consistency and 79.9% for consistency within one mammogram. Thirty-five percent was exactly consistent in reporting mammogram date; 55.6% was consistent within 3 months. Completing both surveys by mail and reporting fewer lifetime mammograms at baseline were positively associated with consistency of reporting lifetime number. White race/ethnicity, having a Bachelor's degree, reporting a healthcare provider's recommendation for a mammogram, having a screening mammogram, completing both surveys by mail, and being in the maintenance or action stages of change were associated with consistency in reporting date. Conclusions.: Reliability varies with the measure of self-reported mammography. Likewise, predictors show different patterns of association with different definitions. Our findings call attention to the need for explicit definitions and measures of mammography use.

Original languageEnglish
Pages (from-to)320-326
Number of pages7
JournalPreventive Medicine
Issue number4
StatePublished - Apr 2006

Bibliographical note

Funding Information:
This research was supported by grant RO1 CA76330 from the National Cancer Institute. This paper is based, in part, on the M.S. thesis research project done by Semilla Rivera at The University of Texas-Houston School of Public Health.


  • Mammography/utilization
  • Reproducibility of results
  • Self-reports

ASJC Scopus subject areas

  • Epidemiology
  • Public Health, Environmental and Occupational Health


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