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Table 3 Intraoperative PTH test results

From: Intraoperative parathyroid hormone (PTH) testing in patients with primary hyperparathyroidism and PTH levels in the normal range

  Group A (n = 9) Group B (n = 235) p value
TP 6 (66.7%) 207 (88.1%) 0.12
TN 2 (22.2%) 22 (9.4%)
FN 1 (11.1%) 6 (2.6%)
Sensitivity 86% 97%  
Specificity 100% 100%  
PPV 100% 100%  
NPV 67% 79%  
  1. TP True positive result, TN True negative result, FN false negative result, PPV Positive predictive value, NPV Negative predictive value