Table 3.

Psychometric investigation and clinical validity of the Children Depression Inventory 2 short form

	Sensitivity	Specificity	PPV	NPV	LR+	LR-	Youden’s index	Accuracy
6	0.89	0.74	34.8	95.7	2.55	0.14	0.55	65
7	0.89	0.80	25.5	95.7	3.41	0.15	0.63	74
8	0.83	0.86	19.6	95.7	4.44	0.14	0.69	80
9	0.83	0.90	14.0	95.8	5.83	0.19	0.69	86
10*	0.82*	0.93*	9.6*	95.8*	8.50*	0.18*	0.74*	90*
11	0.69	0.95	6.4	95.9	12.38	0.20	0.75	93
12	0.63	0.98	4.7	96.2	14.39	0.33	0.64	95
13	0.56	0.99	2.5	96.3	24.98	0.38	0.60	97
14	0.52	0.99	1.1	96.5	49.58	0.45	0.54	98

^*the point that maximizes Youden’s index.

PPV, positive predictive value; NPV, negative predictive value; LR+, positive likelihood ratio; LR-, negative likelihood ratio