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Breast Cancer Surveillance Consortium: Working together to advance breast cancer research
 
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Performance Measures for 3,884,059 Screening Mammography Examinations1 from 1996 to 2006 by Age & Time (Months) Since Previous Mammography --- based on BCSC data as of 2008

You are viewing the 2008 collection of this data. Data from other times are also available:
  Sensitivity2 Specificity3 PPV4 Recall5
Age 40-44 71.9% 89.1% 1.5% 10.9%
9-15 months 64.5% 90.6% 1.5% 9.4%
16-20 months 67.7% 90.4% 1.4% 9.7%
21-27 months 71.7% 90.4% 1.6% 9.6%
28+ months 74.4% 89.1% 1.6% 11.0%
No previous mammography 83.3% 84.1% 1.4% 16.0%
Age 45-49 76.0% 89.6% 2.4% 10.5%
9-15 months 70.1% 90.4% 2.1% 9.6%
16-20 months 72.8% 90.4% 2.4% 9.7%
21-27 months 78.0% 90.1% 2.7% 10.0%
28+ months 81.7% 88.6% 2.8% 11.6%
No previous mammography 89.5% 82.3% 2.4% 18.0%
Age 50-54 79.7% 90.8% 3.4% 9.4%
9-15 months 74.4% 91.6% 3.1% 8.5%
16-20 months 76.7% 91.5% 3.3% 8.6%
21-27 months 85.1% 90.6% 3.3% 9.6%
28+ months 86.8% 89.3% 4.4% 11.0%
No previous mammography 90.6% 81.6% 3.3% 18.8%
Age 55-59 82.6% 91.5% 4.7% 8.8%
9-15 months 80.0% 92.2% 4.3% 8.0%
16-20 months 78.7% 91.9% 5.0% 8.4%
21-27 months 84.3% 90.7% 4.9% 9.6%
28+ months 90.0% 90.0% 5.4% 10.4%
No previous mammography 93.9% 84.0% 6.3% 16.8%
Age 60-64 80.8% 92.0% 5.5% 8.4%
9-15 months 76.2% 92.5% 4.8% 7.8%
16-20 months 81.0% 92.1% 5.4% 8.2%
21-27 months 83.8% 91.4% 6.1% 9.0%
28+ months 89.5% 90.9% 7.6% 9.7%
No previous mammography 92.3% 85.6% 6.8% 15.2%
Age 65-69 83.4% 92.5% 6.5% 7.9%
9-15 months 78.8% 93.0% 5.5% 7.3%
16-20 months 86.2% 92.6% 6.8% 7.8%
21-27 months 85.6% 92.2% 7.7% 8.3%
28+ months 90.4% 91.3% 8.7% 9.4%
No previous mammography 91.2% 86.0% 8.4% 15.0%
Age 70-74 83.9% 93.1% 8.0% 7.3%
9-15 months 79.8% 93.7% 7.1% 6.6%
16-20 months 82.9% 93.3% 7.9% 7.1%
21-27 months 89.1% 92.4% 8.7% 8.2%
28+ months 90.3% 92.0% 10.0% 8.7%
No previous mammography 89.8% 86.9% 11.4% 14.5%
Age 75-89 85.1% 93.6% 10.0% 6.9%
9-15 months 80.7% 94.2% 8.1% 6.2%
16-20 months 83.7% 94.0% 9.5% 6.5%
21-27 months 87.5% 92.9% 10.5% 7.7%
28+ months 90.3% 92.8% 13.5% 8.1%
No previous mammography 92.7% 88.0% 17.6% 14.1%

1 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 or a prior mastectomy or a prior breast cancer diagnosis.

2 Sensitivity = The percentage of cancers§ that had a positive interpretation&.

3 Specificity = The percentage of non-cancers~ that had a negative interpretation#.

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

5 Recall = The percentage of examinations with a positive interpretation&.

§ Cancers = Examinations with a tissue diagnosis of ductal carcinoma in situ or invasive cancer within one year and before the next screening mammography examination.

~Non-cancers = Examinations without a tissue diagnosis of cancer within one year or before the next screening examination, whichever occurs earlier.

& Positive interpretation = BI-RADS category 4, 5, or 0 --- 3 with a recommendation for immediate follow-up were recoded as 0.

# Negative interpretation = BI-RADS category 1, 2, or 3 with no recommendation for immediate follow-up.

* 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/statistics/performance/screening/2008/perf_age_time.html .

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