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Cancer Rate (per 1,000 examinations) and Cancer Detection Rate (per 1,000 examinations) for 273,601 Diagnostic Mammography Examinations from 1996 to 2007 by Age

Number of diagnostic mammography examinations1 Number of cancers2 Cancer rate (per 1,000 examinations)3 Cancer detection rate (per 1,000 examinations)4
Total 273,601 11,200 40.93 33.42
Age 40-44 48,074 1,197 24.89 19.99
Age 45-49 51,655 1,661 32.15 25.82
Age 50-54 45,096 1,621 35.94 28.58
Age 55-59 34,577 1,424 41.18 33.63
Age 60-64 26,584 1,156 43.48 34.15
Age 65-69 22,477 1,118 49.73 40.08
Age 70-74 19,169 1,078 56.23 47.57
Age 75-89 25,969 1,945 74.89 64.57

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

2 Cancers = The number of examinations with a tissue diagnosis of ductal carcinoma in situ or invasive cancer within 30 days prior to or 1 year following the examination.

3 Cancer rate (per 1,000 examinations) = The number of cancers among 1,000 diagnostic mammography examinations.

4 Cancer detection rate (per 1,000 examinations) = The number of cancers among 1,000 diagnostic mammography examinations with a positive interpretation (BI-RADS category 0 or 3 with a recommendation for biopsy, 4, or 5).

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Last modified: 26 Jun 2009
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