Table 4.

Performance of IOPTH for detecting postoperative hypoparathyroidism and persistent pHPT in MEN1-associated pHPT undergoing initial parathyroidectomy

Parameter	Final values of IOPTH detecting hypoparathyroidism (%)	Final values of IOPTH detecting persistent pHPT (%)	% IOPTH decrease ≥75 % detecting cure
Sensitivity	51.9	25	93.5
Specificity	72.7	90.3	0
NPV	55.2	90.3	0
PPV	70	25	87.8
Likelihood ratio	1.9	2.6	93.5

MEN1 multiple endocrine neoplasia type 1, pHPT primary hyper-parathyroidism, NPV negative predictive value, PPV positive predictive value