title: How many individuals will need to be screened to increase colorectal cancer screening prevalence to 80% by 2018?
abstract: BACKGROUND
  A recent study estimates that 277,000 colorectal cancer (CRC) cases and 203,000 CRC deaths will be averted between 2013 and 2030 if the National Colorectal Cancer Roundtable goal of increasing CRC screening prevalence to 80% by 2018 is reached. However, the number of individuals who need to be screened (NNS) to achieve this goal is unknown. In this communication, the authors estimate the NNS to achieve 80% by 2018 nationwide and by state.
  
  
  METHODS
  The authors estimated the NNS by subtracting adults aged 50 to 75 years who would need to be screened to achieve an 80% CRC screening prevalence from the number who are currently guideline-compliant from population estimates for this age group. The 2013 National Health Interview Survey and the 2012 Behavioral Risk Factor Surveillance System were used to estimate CRC screening prevalence and data from the US Census Bureau were used to estimate population projections. The NNS were age-standardized and sex-standardized.
  
  
  RESULTS
  Nationwide, 24.39 million individuals (95% confidence interval, 24.37-24.41 million) aged 50 to 75 years will need to be screened to achieve 80% by 2018. By state, the NNS ranged from 45,400 in Vermont to 2.72 million in California. The majority of individuals who need to be screened are aged 50 to 64 years and the largest subgroup is privately insured.
  
  
  CONCLUSIONS
  The authors estimated that at least 24.4 million additional individuals in the United States will need to be screened to achieve the National Colorectal Cancer Roundtable goal of increasing CRC screening prevalence to 80% by 2018. To reach this goal, improving facilitators of CRC screening, including physician recommendation and patient awareness, is needed.
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.|Department of Epidemiology, Emory University, Atlanta, Georgia.
authors: Stacey A
authors: SA
authors: Fedewa
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.
authors: Jiemin
authors: J
authors: Ma
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.
authors: Ann Goding
authors: AG
authors: Sauer
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.
authors: Rebecca L
authors: RL
authors: Siegel
authors: Cancer Control Science, American Cancer Society, Atlanta, Georgia.
authors: Robert A
authors: RA
authors: Smith
authors: Cancer Control Science, American Cancer Society, Atlanta, Georgia.
authors: Richard C
authors: RC
authors: Wender
authors: Cancer Control Science, American Cancer Society, Atlanta, Georgia.
authors: Mary K
authors: MK
authors: Doroshenk
authors: Office of the Chief Medical Officer, American Cancer Society, Atlanta, Georgia.
authors: Otis W
authors: OW
authors: Brawley
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.
authors: Elizabeth M
authors: EM
authors: Ward
authors: Surveillance and Health Services Research, American Cancer Society, Atlanta, Georgia.
authors: Ahmedin
authors: A
authors: Jemal
mesh_terms: D000368:Aged; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000401:mortality; D055088:Early Detection of Cancer / Q000706:statistics & numerical data*; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000706:statistics & numerical data / Q000639:trends*; D008875:Middle Aged; D015233:Models, Statistical; D015995:Prevalence; D014481:United States / Q000453:epidemiology
keywords: National Colorectal Cancer Roundtable; cancer screening; colorectal neoplasms; public health; socioeconomic status