BCSC
Breast Cancer Surveillance Consortium: Working together to advance breast cancer research
 
Home   |   Data   |   Statistics   |   Tools   |   Collaborations   |   Work with Us   |   Publications   |   About   |   Links

Abnormal Interpretations for 4,032,556 Screening Mammography Examinations from 1996- 2005 --- based on BCSC data as of 2007

You are viewing the 2007 collection of this data. Data from other times are also available:
  All Screening Examinations
Recall rate* 10.9%
Abnormal initial interpretations 438,148
All examinations 4,032,556
PPV1 (abnormal interpretation) 4.4%
Cancers 19,156
Abnormal initial interpretations 438,148
PPV2 (biopsy recommended) 25.1%
Cancers 15,260
Abnormal final interpretations 60,854
PPV3 (biopsy performed)§ 31.8%
Cancers 13,323
Abnormal final interpretations, with known biopsy 41,949

Notes

Numbers are frequencies unless otherwise indicated

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

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

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

Table numbers last updated September 19, 2007. 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/xxxx from the Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/statistics/benchmarks/screening/2007/table3.html .

[Return to Performance Benchmarks for Screening Mammography]