Table 1.

Diagnostic utility of the number of parent- and child-reported worry domains (NAD as comparison group).

No. of reported worry domains	Sensitivity	Specificity	PPP	cPPP	NPP	cNPP	Base rate	κ
Parent-reported worries
9	.05	1	1	1	.35	.02	.03	.04
8	.08	1	1	1	.36	.03	.05	.05
7	.13	1	1	1	.37	.05	.08	.09
6	.29	1	1	1	.42	.12	.19	.22
5	.42	1	1	1	.47	.20	.28	.33
4	.61	1	1	1	.57	.35	.40	.51
3	.80	1	1	1	.72	.57	.53	.73
2	.91	.78	.97	.92	.85	.77	.62	.84
1	.99	.95	.90	.70	.97	.95	.73	.81
Child-reported worries
9	.02	1	1	1	.49	.01	.01	.02
8	.05	.98	.67	.31	.49	.01	.04	.02
7	.09	.98	.80	.59	.50	.03	.06	.06
6	.14	.98	.86	.70	.51	.06	.08	.11
5	.18	.93	.73	.43	.51	.06	.13	.11
4	.32	.83	.67	.31	.53	.09	.25	.15
3	.36	.76	.62	.20	.53	.08	.31	.12
2	.52	.63	.61	.18	.55	.14	.45	.16
1	.68	.59	.64	.25	.63	.29	.55	.27

Note. NAD = non anxiety-disordered youth; PPP = positive predictive power; NPP = negative predictive power; c = corrected; base rate = percentage scoring at or above cut score; κ = agreement between classification and Anxiety Disorders Interview Schedule for Children and Parents after correcting for chance.