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Table 4 Comparison of diagnostic indices of mammography and tomosynthesis in different breast densities and age groups (significant P value < 0.05)

From: Comparing the diagnostic efficacy of digital breast tomosynthesis with full-field digital mammography using BI-RADS scoring

  Sensitivity Specificity PPV NPV P value
FFDM (%) DBT (%) FFDM (%) DBT (%) FFDM (%) DBT (%) FFDM (%) DBT (%)
ALL 64.4 100.0 77.8 97.77 74.4 97.77 68.6 100.0 < 0.001
ACR a 86.7 100.0 83.3 100.0 66.7 100.0 83.3 100.0 0.455
b 60.0 100.0 50.0 100.0 60.0 100.0 50.0 100.0 0.087
c 76.5 100.0 70.0 97.22 76.5 97.22 80.0 100.0 0.013
d 50.0 100.0 100.0 100.0 100.0 100.0 45.5 100.0 0.014
age 30-40 75.0 100.0 68.4 96.3 50.0 96.33 86.7 100.0 0.046
41-50 33.3 100.0 84.6 100.0 66.7 100.0 57.9 100.0 0.001
51-60 68.4 100.0 77.78 100.0 86.7 100.0 53.8 100.0 0.020
61-70 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 ---