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Table 1 Correlation between ultrasound and FNAB

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

  

FNAB

Total

  

M

B, I, S

 

Ultrasound

M

180

29

209

 

B, I, S

485

1359

1844

Total

 

665

1388

2053

Pearson chi-squared

p-value

Kappa coefficient

p-value

306.775

< 0.0001

0.304

< 0.0001

Sensitivity

0.2707

Positive predictive value

0.8612

Specificity

0.9791

Negative predictive value

0.7370

  1. B: benign, I: indeterminate, S: suspicious, M: malignant