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

Sensitivity and Specificity 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
Sensitivity* 78.7%
True positives 19,156
Cancers 24,351
Specificity§ 89.5%
True negatives|| 3,589,2132
Non-Cancers# 4,008,205

Notes

Numbers are frequencies unless otherwise indicated.

*  Sensitivity = the percentage of cancers that had an abnormal interpretation (BI-RADS category 0,4,5, or 3 with a recommendation for immediate work-up)

 True Positive = the number of cancers that had an abnormal interpretation

 Cancers = the number of examinations with a tissue diagnosis of cancer within 1 year following the examination

§  Specificity = the percentage of non-cancers that had a negative interpretation (BI-RADS category 1, 2, or 3 without a recommendation for immediate work-up)

||  True Negative = the number of non-cancers that had a negative interpretation

#  Non-cancers = the number of examinations without a tissue diagnosis of cancer within 1 year following the examination

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/tableSensSpec.html .

[Return to Performance Benchmarks for Screening Mammography]