• Anthony F Jerant, Peter Franks, J Elizabeth Jackson, and Mark P Doescher.
• Department of Family and Community Medicine, University of California, Davis, School of Medicine, Sacramento, Calif 95817, USA. afjerant@ucdavis.edu
• Ann Fam Med. 2004 Sep 1; 2 (5): 481487481-7.

PurposeAlthough few studies have explored age-related health care disparities, some researchers have asserted such disparities uniformly disfavor the elderly and are largely attributable to ageism in the health care system. We compared age-related patterns of screening for colorectal cancer with those for breast and prostate cancer in persons aged 50 years and older.MethodsWe analyzed data for all adults aged 50 years and older (N = 88,213) in the 2001 Behavioral Risk Factor Surveillance System (BRFSS), a nationally representative, telephone-administered survey of personal health behaviors. Main outcome measures were adjusted prevalence by 5-year age-groups of colorectal cancer screening using fecal occult blood testing, flexible sigmoidoscopy, or colonoscopy for men and women; rates of mammography screening for women; and rates of prostate-specific antigen (PSA) screening for men.ResultsAfter adjustment for race/ethnicity, education level, income, health insurance, and self-rated health, predicted reported colorectal cancer screening (all modalities) increased significantly from when patients reached age 50 years until 70 to 74 years (66.0%, standard error [SE] 0.8%), remained constant until age 80 years, and then declined. The age-related gain in colorectal cancer screening was confined to whites among patients older than 60 years. Reported PSA screening increased until age 75 to 79 years (79.3%, SE 1.1%) and then declined, whereas reported mammography screening peaked at age 55 to 59 years (83.3%, SE 1.2%) and then declined.ConclusionsSignificant age-related disparities appear to exist for both evidence-based and non-evidence-based cancer-screening interventions. The issue of age-related disparities in cancer screening is complex, with the direction of disparity favoring the elderly for some services yet disfavoring them for others.

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