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Benchmarks for Cancers by Indication for Examination for 714,984 Diagnostic 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:
Numbers are frequencies unless otherwise indicated. 58161 (7.4%) examinations were given an initial BI-RADS assessment of zero. The first non-zero assessment within 180 days was used as the final assessment for analysis. Examinations without a non-zero assessment within 180 days were excluded (26414,3.3%).
* Includes examinations for radiologists with minimum numbers of cases in a given column as designated; excludes examinations for which the radiologist is unknown.
** Sensitivity = the percentage of cancers that had an abnormal interpretation (BI-RADS category 4 or 5).
† True Positive = the number of cancers that had an abnormal interpretation (BI-RADS category 4 or 5).
‡ 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).
|| True Negative = the number of non-cancers that had a negative interpretation (BI-RADS category 1, 2, or 3).
# 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/data/benchmarks/diagnostic/2007/table7.html
Last modified: 24 Sep 2010
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