A randomised trial of the impact of new faecal haemoglobin test technologies on population participation in screening for colorectal cancer

  • Cole S
  • Young G
  • Esterman A
 et al. 
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OBJECTIVES: To investigate the effect on participation in colorectal cancer screening of testing for blood products in faeces using technologies that remove dietary restrictions (i.e. immunochemical tests) and simplify faecal sampling (i.e. tests that use brush sampling). METHODS: SETTING: Urban residents (n=1818) of Adelaide, Australia, aged between 50 and 69 years, randomly selected from the electoral roll. DESIGN: Three randomised cohorts of 606 invitees were offered a screening test by mail in 2001. The Hemoccult SENSA and FlexSure OBT cohorts were instructed to sample three stools using a spatula while the InSureTM cohort sampled two stools using a brush. The Hemoccult SENSA cohort was asked to restrict certain (high-peroxidase) foods and drugs. MAIN OUTCOME MEASURES: Participation (i.e. return of completed sample kits within 12 weeks) and generalised linear modelling (GLM) of relationships between participation, test technologies and demographic variables. RESULTS: Participation was 23.4%, 30.5% and 39.6% for the Hemoccult, FlexSure and InSure cohorts, respectively (chi(2)=37.1, p

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