Journal of Public Health Advance Access published online on May 22, 2007
Journal of Public Health, doi:10.1093/pubmed/fdm020
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Cumulative attendance, assessment and cancer detection rate over four screening rounds in five English breast-screening programmes: a retrospective study
Matthew Wallis, Consultant Radiologist1,
Fergus Neilson, QA Co-ordinator2
Helen Hogarth, Research assistant2
Caroline Whitaker, Audit Officer2
Keith Faulkner, QA Director2
1 Breast Screening Unit, University Hospitals Coventry and Warwickshire, Clifford Bridge Road, Coventry, CV2 2DX, United Kingdom
2 North East, Yorkshire and the Humber Quality Assurance Reference Centre, 9 Kings way, Silverlink Business Park, Wallsend, Newcastle upon Tyne, NE28 9ND, United Kingdom
Address correspondence to Matthew Wallis, E-mail: mgwallis12{at}aol.com
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Background Data collection in the National Health Service Breast Screening Programme monitors performance in a different cohort of women each year.
Methods This paper follows a single cohort study of 57 425 women (aged 5053, when first invited) over four screening rounds to find: how many women attend screening and how often; how many were assessed; how many times they were assessed; and the number of cancers detected at each round.
Results Average attendance in each round was 76.9% and has remained constant. Only 62% of women have attended all four rounds, but 89.9% have been screened at least once, the average number of attendances being 3.5. Average assessment rate decreased from 7.3 to 3.5%. A total of 11.3% of women were assessed once, 0.91% twice and 0.06% three times. Cancer detection rates have more than doubled from 3.3 per 1000 screened to 6.9.
Conclusions Current monitoring shows constant uptake over time, but when looking at a cohort of individual woman, a much larger percentage have 'ever' attended and a smaller number have attended all invitations. The chance of a woman being assessed at all, if she attends all four rounds, is 12.3%, which can be calculated by summating the recall rates in each round.
Keywords: public health, screening