Evaluation of Quantitative EEG by Classification and Regression Trees to Characterize Responders to Antidepressant and Placebo Treatment

Table 2: Summary of Statistical Measures

Model	Sensitivity	Specificity	PPV	NPV	γ
HAM-D CART-F and V	0.73	1	1	0.786	0.73
HAM-D CART-Pbo	1	0.47	0.47	1	0.47
QEEG CART- F and V	0.85	1	1	0.86	0.85
QEEG CART-F	0.71	1	1	0.75	0.71
QEEG CART-V	0.83	1	1	0.86	0.83
QEEG CART-Pbo	0.9	0.75	0.69	0.92	0.65

F = fluoxetine, V = venlafaxine, Pbo = placebo, PPV = positive predictive value, NPV = negative predictive value, γ = Youden’s index γ.