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Abnormal Interpretations for 4,032,556 Screening Mammography Examinations from 1996 - 2005

  All Screening Examinations
Recall rate* 10.9%
Abnormal interpretations 438,148
All examinations 4,032,556
PPV1 (abnormal interpretation) 4.4%
Cancers 19,156
Abnormal interpretations 438,148
PPV2 (biopsy recommended) 25.1%
Cancers 15,260
Abnormal interpretations 60,854
PPV3 (biopsy performed)§ 31.8%
Cancers 13,323
Abnormal interpretations 41,949

Notes: Numbers are frequencies unless otherwise indicated

* Recall rate = the percentage of examinations interpreted as abnormal (BI-RADS category 0,4,5 or 3 with a recommendation for immediate work-up)

PPV1 = the percentage of examinations with an abnormal interpretation that results in a tissue diagnosis of cancer within 1 year

PPV2 = the percentage of examinations with final BI-RADS category 4,5 that results in a tissue diagnosis of cancer within 1 year

§ PPV3 = the percentage of known biopsies performed as a result of a screen with final BI-RADS category 4,5 that results in a tissue diagnosis of cancer within 1 year

The following source must be cited when reproducing this table: NCI-funded Breast Cancer Surveillance Consortium co-operative agreement (U01CA63740, U01CA86076, U01CA86082, U01CA63736, U01CA70013, U01CA69976, U01CA63731, U01CA70040). Downloaded xx/xx/xx from the Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/data/benchmarks/screening/table3.html

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