APPENDIX K

INTERNATIONAL STANDARDS FOR BREAST SCREENING


The following is a compilation of international standards/targets which have been established for many screening elements which quality breast screening services should be achieving/striving to achieve.

CriteriaAcceptable StandardAchievable Standard
Uptake/Participation Rate of Eligible, Target Women10,20,32 70 % of invited women 75 %
Referred/Abnormality Rate9,10,20,32 10-14 % 5 % first round
3 % routine re-screen
Proportion of Women Undergoing Repeat Films (i.e., repeated exams)32 < 3 % of total examinations < 2 % of total
Cancer Detection Rates in Eligible Women9,10,20,32 > 5/1000 first screen
> 3.5/1000 re-screen
6/1000 first screen
Percentage of Cancers < 1.5 cm in Diameter Detected in Eligible, Screened Women9 ≥ 50 %  
Percentage of Node Negative Cancers Detected in Eligible, Screened Women9 ≥ 70 %  
Proportion of Screened Women that Undergo Biopsy9,10,20 < 1.5 %
Malignant to Benign Biopsy Ratio32 1:1 1.5:1
Positive Predictive Value of Biopsy32 50 % 60 %
Benign Biopsy Rate32 < 5/1000 first screen
< 3.5/1000 re-screen
< 4/1000 first screen
Interval Cancers in Screened Women32 ≤ 3/1000 women screened