Results from the first three rounds of the Scottish demonstration pilot of FOBT screening for colorectal cancer
- R J C Steele1,2,3,
- P L McClements4,
- G Libby3,4,
- R Black4,
- C Morton5,
- J Birrell5,
- N A G Mowat6,
- J A Wilson7,
- M Kenicer8,
- F A Carey9,
- C G Fraser2
- 1Department of Surgery, University of Dundee, Dundee, UK
- 2Scottish Bowel Screening Centre, UK
- 3Bowel Screening Research Unit, Scottish Bowel Screening Centre, UK
- 4Information Services, NHS National Services Scotland, UK
- 5NHS National Services Scotland, UK
- 6Department of Gastroenterology, Aberdeen Royal Infirmary, Aberdeen, UK
- 7Department of Gastroenterology, Victoria Hospital, Kirkaldy, UK
- 8Department of Public Health, NHS Tayside, Dundee, UK
- 9Department of Pathology, University of Dundee, Dundee, UK
- Professor R J C Steele, Department of Surgery and Molecular Oncology, Level 6, Ninewells Hospital and Medical School, Dundee DD1 9SY, UK; r.j.c.steele{at}dundee.ac.uk
- Revised 1 November 2008
- Accepted 5 November 2008
- Published Online First 26 November 2008
Abstract
Objectives: To assess the effects of the first three rounds of a pilot colorectal screening programme based on guaiac faecal occult blood testing (gFOBT) and their implications for a national population-based programme.
Methods: A demonstration pilot programme was conducted in three Scottish NHS Boards. Residents aged between 50 and 69 years registered on the Community Health Index were included in the study.
Results: In the first round, the uptake was 55.0%, the positivity rate was 2.07% and the cancer detection rate was 2.1/1000 screened. In the second round, these were 53.0%, 1.90% and 1.2/1000, respectively, and in the third round, 55.3%, 1.16% and 0.7/1000, respectively. In the first round, the positive predictive value of the gFOBT was 12.0% for cancer and 36.5% for adenoma; these fell to 7.0% and 30.3% in the second round and were maintained at 7.5% and 29.1% in the third round. The percentage of screen-detected cancers diagnosed at Dukes’ stage A was 49.2% in the first round, 40.1% in the second round and 36.3% in the third round.
Conclusions: These results are compatible with those of previous randomised trials done in research settings, demonstrating that population-based colorectal cancer screening is feasible in Scotland and should lead to a comparable reduction in disease-specific mortality.
Footnotes
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Competing interests: None.
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Funding: This work was supported in part by a grant from the Chief Scientist Office, Scottish Government Health Department, to establish a Bowel Screening Research Unit.









