title: Self-reported bowel screening rates in older Australians and the implications for public health screening programs.
abstract: BACKGROUND
  This paper sought to determine the status of older Australians with regard to Bowel Cancer screening practices occurring outside of the National Bowel Cancer Screening Program.
  
  
  METHODS
  A random sample of N=25,511 urban Australians aged 50 to 74 years received a questionnaire via mail asking questions relating to bowel screening. N=8,762 (34.3%) returned a completed questionnaire.
  
  
  RESULTS
  Approximately 33% (N=2863) of respondents indicated they had undergone colonoscopy in the preceding five years and 21% (N=1840) had used a Faecal Occult Blood Test (FOBT) in the preceding 12 months. Furthermore, 27% (N=497) of those who had completed an FOBT had also undergone colonoscopy.
  
  
  CONCLUSIONS
  A significant proportion of older Australians might be participating in bowel screening practices outside of the national program (NBCSP). Moreover, the proportion of individuals reporting use of both FOBT and endoscopic services is much higher than the positivity rate of FOBT. Large population FOBT screening programs, such as the NBCSP, that do not consider participation in screening external to the program may underestimate true population screening rates.
authors.affiliation: CSIRO Preventative Health Research Flagship, South Australia.
authors.forename: Ian T
authors.initials: IT
authors.lastname: Zajac
authors.forename: Ingrid
authors.initials: I
authors.lastname: Flight
authors.forename: Deborah
authors.initials: D
authors.lastname: Turnbull
authors.forename: Graeme
authors.initials: G
authors.lastname: Young
authors.forename: Steve
authors.initials: S
authors.lastname: Cole
authors.forename: Carlene
authors.initials: C
authors.lastname: Wilson
keywords: Colorectal Cancer Screening; Faecal Occult Blood Test; National Bowel Cancer Screening Program; Screening Participation
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