BCSC
Breast Cancer Surveillance Consortium: Working together to advance breast cancer research
 
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Abnormal Interpretations for 2,061,691 Screening Mammography Examinations from 2004 - 2008 -- based on BCSC data through 2009

You are viewing the 2009 collection of this data. Data from other times are also available:
  All Screening Examinations
Recall rate* 10.0%
Abnormal initial interpretations 206,918
All examinations 2,061,691
PPV1 4.2%
Cancers 8,774
Abnormal initial interpretations 206,918
PPV2 23.9%
Cancers 6,864
Abnormal final interpretations 28,692
PPV3§ 27.9%
Cancers 6,183
Abnormal final interpretations, with known biopsy 22,179

Notes

Numbers are frequencies unless otherwise indicated.

Screening Mammography Examinations: mammography examinations indicated by the radiologist to be for screening, with bilateral routine views done and no other mammogram within the last 9 months, among women without breast implants.

* Recall rate = the percentage of examinations with an abnormal initial interpretation (BI-RADS category 0, 4, or 5; Note: 3 with a recommendation for immediate follow-up was recoded as 0).

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

PPV2 = The percentage of examinations with an abnormal final interpretation** that result in a tissue diagnosis of cancer within 1 year.

§ PPV3 = the percentage of examinations with an abnormal final interpretation**, where it is known that a biopsy was performed as a result of the abnormal diagnostic examination, that result in a tissue diagnosis of cancer within 1 year.

** Abnormal final interpretation = (BI-RADS category 4 or 5; Note: 0 or 3 with a recommendation for biopsy was recoded as 4.)

Table numbers last updated Sept 26, 2013. The following source must be cited when reproducing this table: NCI-funded Breast Cancer Surveillance Consortium (HHSN261201100031C). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/statistics/benchmarks/screening/2009/table3.html .

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