Abnormal Interpretations

Abnormal Interpretations for 1,682,504 Screening Mammography Examinations from 2007 - 2013

Based on BCSC data through 2013

  Number of Screening Exams
Recall Rate* 11.6%
Abnormal initial interpretations 194,668
All examinations 1,682,504
PPV1 4.4%
Cancers 8,529
Abnormal initial interpretations 194,668
PPV2 25.6%
Cancers 7,376
Abnormal final Interpretations 28,785
PPV3§ 28.6%
Cancers 5,945
Abnormal final interpretations, with known biopsy 20,763

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. (Excludes Chicago)

**  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 March 23, 2017.


 

The following must be cited when reproducing this data:

"The Breast Cancer Surveillance Consortium and its data collection and sharing activities are funded by grants from the National Cancer Institute (P01CA154292, U54CA163303), Patient-Centered Outcomes Research Institute (PCS-1504-30370), and Agency for Health Research and Quality (R01 HS018366-01A1). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://www.bcsc-research.org/. More information regarding the BCSC is available at: http://bcsc-research.org/."