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British Journal of Radiology (2003) 76, 309-320
© 2003 British Institute of Radiology
doi: 10.1259/bjr/64009424

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Analysis of benefit:risk ratio and mortality reduction for the UK Breast Screening Programme

J R Beckett, PhD 1 C J Kotre, PhD 1 and J S Michaelson, PhD 2

1 Regional Medical Physics Department, Newcastle General Hospital, Newcastle-upon-Tyne NE4 6BE, UK and 2 Departments of Pathology and Radiology, Massachusetts General Hospital and Department of Pathology, Harvard Medical School, Boston, MA USA



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Figure 1. Benefit:risk ratio (BRR) vs compressed breast thickness for the current NHSBSP regimen. BRR in terms of years of life (YOL) is shown as circles ({circ}); BRR in terms of breast cancer mortality is shown as triangles ({triangleup}).

 


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Figure 2. Reduction (R) in breast cancer mortality ({triangleup}) and years of life lost (YOLL) to breast cancer ({circ}) vs compressed breast thickness for the current NHSBSP regimen.

 


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Figure 3. Benefit:risk ratio in terms of breast cancer mortality (BRR(d)) vs age at first screen for regimens with final screens at ages 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 4. Benefit:risk ratio in terms of years of life lost to breast cancer (BRR(y)) vs age at first screen for regimens employing a final screen at age 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 5. Reduction in breast cancer mortality (R(d)) vs age at first screen for regimens employing a final screen at age 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 6. Reduction in the number of years of life lost to breast cancer (R(y)) vs age at first screen for regimens employing a final screen at age 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 7. Mean reduction in breast cancer mortality (R(d)) per screen vs age at first screen for regimens employing a final screen at age 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 8. Mean reduction in the number of years of life lost to breast cancer (R(y)) per screen vs age at first screen for regimens employing a final screen at age 64 years ({circ}), 66 years ({triangleup}), 68 years ({diamond}) and 70 years ({star}). The interval between successive screens is 3 years in each case.

 


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Figure 9. Benefit:risk ratio in terms of breast cancer mortality (BRR(d)) vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 


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Figure 10. Benefit:risk ratio in terms of years of life lost to breast cancer (BRR(y)) vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 


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Figure 11. Reduction in breast cancer mortality (R(d)) vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 


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Figure 12. Reduction in the number of years of life lost to breast cancer (R(y)) vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 


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Figure 13. Mean reduction in breast cancer mortality (R(d)) per screen vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 


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Figure 14. Mean reduction in the number of years of life lost to breast cancer (R(y)) per screen vs interval between successive screens for screening in the age ranges 50–64 years ({circ}) and 50–70 years ({triangleup}).

 





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