Performance Measures for 273,601 Diagnostic Mammography Examinations¹ from 1996 to 2006 by Age --- based on BCSC data as of 2008

¹ Diagnostic mammography examination: Mammography examinations indicated by the radiologist to be for evaluation of a breast problem.

² PPV2 (Positive Predictive Value 2) = The percentage of examinations with a positive interpretation^& that result in a tissue diagnosis of cancer^§.

³ Abnormal interpretation = The percentage of examinations with a positive interpretation^&.

^§ Cancers = Examinations with a tissue diagnosis of ductal carcinoma in situ or invasive cancer within 30 days prior to or 1 year following the examination.

^~ Non-cancers = Examinations without a tissue diagnosis of ductal carcinoma in situ or invasive cancer within 30 days prior to or 1 year following the examination.

^& Positive interpretation = BI-RADS category 4 or 5 --- 0/3 with a recommendation for biopsy were recoded as 4.

^# Negative interpretation = BI-RADS category 1, 2, 0 with no recommendation for biopsy nor additional imaging/work-up, or 3 with no recommendation for biopsy.

^* Table numbers last updated March 31, 2009. 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/performance/diagnostic/2008/perf_age.html .

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