Table 3.

Sensitivity, specificity, PPV, NPV, and Youden index for various TREC thresholds

TREC/150,000 CD3+	Sensitivity	Specificity	PPV	NPV	Youden Index
250	0.19	1.00	1.00	0.47	0.19
500	0.35	0.87	0.80	0.48	0.22
1000	0.54	0.77	0.74	0.55	0.31
2000	0.70	0.69	0.69	0.56	0.39
5000	0.83	0.54	0.64	0.62	0.37
10000	0.96	0.15	0.62	0.75	0.11