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Table 3 Correlation between FNAB and CNB

From: Can concurrent core biopsy and fine needle aspiration biopsy improve the false negative rate of sonographically detectable breast lesions?

   Core biopsy Total
   M B, I, S  
FNAB M 639 26 665
  B, I, S 241 1147 1388
Total   880 1173 2053
Pearson chi-squared p-value Kappa coefficient p-value
1137.806 < 0.0001 0.726 < 0.0001
Sensitivity 0.7261 Positive predictive value 0.9609
Specificity 0.9778 Negative predictive value 0.8264
  1. B: benign, I: indeterminate, S: suspicious, M: malignant