title: Correlates of underutilization of colorectal cancer screening among U.S. adults, age 50 years and older.
abstract: BACKGROUND
  Although effective screening for colorectal cancer (CRC) exists, only 37% of incident CRC are diagnosed at a localized stage at which treatment is effective. We identified demographic and other characteristics of adults (> or = 50 years old) who reported no CRC screening.
  
  
  METHODS
  We calculated the prevalence of never having had a fecal occult blood test and/or a sigmoidoscopy or colonoscopy by age, sex, and other factors using the 1999 Behavioral Risk Factor Surveillance System data.
  
  
  RESULTS
  CRC screening tests were underutilized across all segments of the population. Underutilization was highest in persons aged 50-64 years and those with lower education and a lack of health insurance and preventive services.
  
  
  CONCLUSIONS
  The data indicate that large proportions of average-risk adults across various sociodemographics and behavioral factors are not utilizing recommended CRC screening tests. There is a need to increase the awareness of the importance of utilizing effective CRC screening tests for the early detection of colorectal cancers.
authors.affiliation: National Home Office, American Cancer Society, Atlanta, Georgia 30329, USA. vcokkini@cancer.org
authors.forename: Vilma E
authors.initials: VE
authors.lastname: Cokkinides
authors.forename: Ann
authors.initials: A
authors.lastname: Chao
authors.forename: Robert A
authors.initials: RA
authors.lastname: Smith
authors.forename: Sally W
authors.initials: SW
authors.lastname: Vernon
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Thun
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003113:Colonoscopy / Q000706:statistics & numerical data*; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D003625:Data Collection; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009780:Occult Blood; D010342:Patient Acceptance of Health Care; D012307:Risk Factors; D012959:Socioeconomic Factors; D014481:United States