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Benchmarks for Sensitivity and Specificity 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:
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.
* Includes examinations for radiologists with minimum numbers of cases in a given row as designated; excludes examinations for which the radiologist is unknown.
** Sensitivity = the percentage of cancers that had an abnormal initial interpretation (BI-RADS category 0, 4, 5; Note: 3 with a recommendation for immediate follow-up was recoded as 0).
† True Positive = the number of cancers that had an abnormal initial 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 initial interpretation (BI-RADS category 1, 2, or 3 with no recommendation for immediate follow-up).
|| True Negative = the number of non-cancers that had a negative initial interpretation.
# Non-cancers = the number of examinations without a tissue diagnosis of cancer within 1 year following the examination.
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/table7.html .
Last modified: 09 Jul 2014
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