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 the National Cancer Institute (P01CA154292). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://www.bcsc-research.org/."