title: Age-related disparities in cancer screening: analysis of 2001 Behavioral Risk Factor Surveillance System data.
abstract: OBJECTIVE
  Although 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.
  
  
  METHODS
  We 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.
  
  
  RESULTS
  After 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.
  
  
  CONCLUSIONS
  Significant 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.
authors.affiliation: Department of Family and Community Medicine, University of California, Davis, School of Medicine, Sacramento, Calif 95817, USA. afjerant@ucdavis.edu
authors.forename: Anthony F
authors.initials: AF
authors.lastname: Jerant
authors.forename: Peter
authors.initials: P
authors.lastname: Franks
authors.forename: J Elizabeth
authors.initials: JE
authors.lastname: Jackson
authors.forename: Mark P
authors.initials: MP
authors.lastname: Doescher
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D040343:Behavioral Risk Factor Surveillance System; D001943:Breast Neoplasms / Q000517:prevention & control; D015179:Colorectal Neoplasms / Q000517:prevention & control; D005006:Ethnicity; D005260:Female; D006297:Health Services Accessibility; D006801:Humans; D016015:Logistic Models; D008297:Male; D008403:Mass Screening / Q000706:statistics & numerical data*; D008875:Middle Aged; D009369:Neoplasms / Q000517:prevention & control*; D010818:Practice Patterns, Physicians'; D011287:Prejudice; D011471:Prostatic Neoplasms / Q000517:prevention & control; D014481:United States