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Table 3. Specificity and Positive Predictive Valuea

Study Specificity (%)
(Work-up method)
Positive Predictive Value (%)
(Work-up method)
Positive Predictive Value (%)
(Biopsy method)
HIP NR 12 20
Malmö 97.4 10-22 33-61
Swedish Two-County Trial 95.6 12 50-75
Stockholm 95.1 8-10 62-78
CNBSS-1 93.5 2 12
CNBSS-2   4-6 20
Gothenburg   3-7 (complete mammography)
12-18 (CBE and FNA biopsy)
 

aAdapted from references 36 and 45. Work-up method, a mammogram requiring further evaluation; biopsy method, a mammogram resulting in biopsy.

Note: CBE indicates clinical breast examination; CNBSS, Canadian National Breast Screening Study; FNA, fine-needle aspiration; HIP, Health Insurance Plan of Greater New York; NR, not reported.


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