Table 6.

Psychometric properties of screening tools^a compared to K-SADS^b clinical caseness, N = 328.

6a. Depression Self Rating Scale
Cut-off score	Sens	Spec	PPV	NPV	LR+	LR−	DOR	YJ
≥7	86	39	9	98	1.4	0.4	3.9	25
≥8	86	45	10	98	1.5	0.3	4.8	30
≥9	71	54	10	97	1.6	0.5	2.9	25
6b. Child PTSD Symptom Scale
Cut-off score	Sens	Spec	PPV	NPV	LR+	LR−	DOR	YJ
≥12	95	26	15	97	1.3	0.2	7.0	21
≥13	88	36	16	95	1.4	0.3	4.1	24
≥14	80	43	17	94	1.4	0.5	3.1	24
6c. Disruptive Behavior Disorder Rating Scale – Oppositional Defiant Disorder subscale
Cut-off score	Sens	Spec	PPV	NPV	LR+	LR−	DOR	YJ
≥10	97	24	22	97	1.3	0.1	9.2	21
≥11	85	39	23	92	1.4	0.4	3.6	24
≥12	73	52	25	90	1.5	0.5	2.9	25
6d. Disruptive Behavior Disorder Rating Scale – Conduct Disorder subscale
Cut-off score	Sens	Spec	PPV	NPV	LR+	LR−	DOR	YJ
≥1	91	30	33	90	1.3	0.3	4.5	21
≥2	83	51	40	88	1.7	0.3	5.0	34
≥3	70	68	45	85	2.2	0.4	4.8	37

^aRows highlighted in gray indicate the final cut-off score selected for each screening tool.

^bAbbreviations: K-SADS: Kiddie-Schedule for Affective Disorders and schizophrenia, PPV: positive predictive value, NPV: negative predictive value, LR+ : positive likelihood odds ratio, LR− : negative likelihood odds ratio, DOR: diagnostic odds ratio, YJ: Youden’s index