Table 4.

Differential diagnosis for “combined PID” and “syndromic PID” and “antibody PID.” Accuracy measures for different cutoff points of the predicted probabilities for TREC.

Cutoff point (probability)	PPV (%)	NPV (%)	Sensitivity (%)	Specificity (%)	Youden index
0.05	31	80	96	7	2.9
0.1	33	89	96	13	9.5
0.15	34	88	94	18	12.6
0.2	36	89	93	28	20
0.25	38	88	89	35	23.7
0.3	40	84	79	47	25.9
0.35	51	86	76	68	43.8
0.4	65	85	66	84	50.2

Optimum cut-off point based on maximum value of the J index is presented in bold.