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Table 3 Fisher exact contingency table- permanent section analysis

From: Frozen section analysis and sentinel lymph node biopsy in well differentiated thyroid cancer

 

(+) Metastasis

(−) Metastasis

Total

 

(+)SLN

43

0

43

PPV = 100.0%

(−) SLN

5

252

257

NPV = 98.1%

Total

48

252

300

 
 

Sensitivity = 89.6%

Specificity = 100.0%

  
  1. (+)SLN sentinel lymph node positive for metastasis; (-)SLN sentinel lymph node negative for metastasis; (+)Metastasis Central compartment sample involved with metastasis;
  2. (-) Metastasis Central compartment sample negative for metastasis.