Colonoscopy Screening Among US Adults Aged 40 or Older With a Family History of Colorectal Cancer
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Colonoscopy Screening Among US Adults Aged 40 or Older With a Family History of Colorectal Cancer

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  • Alternative Title:
    Prev Chronic Dis
  • Publisher's site:
  • Personal Author:
  • Description:
    Introduction

    Colonoscopy screening reduces colorectal cancer (CRC) incidence and mortality. CRC screening is recommended at age 50 for average-risk people. Screening of first-degree relatives of CRC patients is recommended to begin at age 40 or 10 years before the age at diagnosis of the youngest relative diagnosed with CRC. CRC incidence has increased recently among younger Americans while it has declined among older Americans. The objective of this study was to determine whether first-degree relatives of CRC patients are being screened according to recommended guidelines.

    Methods

    We studied colonoscopy screening rates among the US population reporting a CRC family history using 2005 and 2010 National Health Interview Survey data.

    Results

    Of 26,064 study-eligible respondents, 2,470 reported a CRC family history; of those with a family history, 45.6% had a colonoscopy (25.2% in 2005 and 65.8% 2010). The colonoscopy rate among first-degree relatives aged 40 to 49 in 2010 (38.3%) was about half that of first-degree relatives aged 50 or older (69.7%). First-degree relatives were nearly twice as likely as nonfirst-degree relatives to have a colonoscopy (adjusted odds ratio [AOR], 1.7; 95% confidence interval, 1.5–1.9), but those aged 40 to 49 were less likely to have a colonoscopy than those in older age groups (AOR, 2.6 for age 50–64; AOR, 3.6 for age ≥65). Interactions with age, insurance, and race/ethnicity were not significant. Having health insurance tripled the likelihood of screening.

    Conclusion

    Despite a 5-fold increase in colonoscopy screening rates since 2005, rates among first-degree relatives younger than the conventional screening age have lagged. Screening promotion targeted to this group may halt the recent rising trend of CRC among younger Americans.

  • Subjects:
  • Source:
    Prev Chronic Dis. 12.
  • Pubmed ID:
    25996988
  • Pubmed Central ID:
    PMC4454413
  • Document Type:
    Journal Article
  • Funding:
    1R15CA156098-01/CA/NCI NIH HHS/United States
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