Table 4.

Classification accuracy of CAPE total score ^a, psychotic disorder vs other/no diagnosis.

CAPE cut- off, total score a	Sensitivity	Specificity	PPV	NPV
0	0.95	0.04	0.29	0.67
1	0.91	0.08	0.29	0.67
2	0.84	0.13	0.29	0.67
3	0.80	0.17	0.29	0.67
4	0.80	0.18	0.29	0.68
5	0.75	0.27	0.30	0.72
6	0.75	0.33	0.32	0.76
7	0.73	0.38	0.33	0.77
8	0.61	0.42	0.31	0.72
9	0.59	0.46	0.31	0.73
10	0.59	0.50	0.33	0.75
11	0.59	0.56	0.36	0.77
12	0.52	0.61	0.36	0.75
13	0.50	0.64	0.37	0.75
14	0.50	0.67	0.39	0.76
15	0.43	0.70	0.37	0.74
16	0.41	0.75	0.41	0.75
17	0.36	0.76	0.39	0.74
18	0.36	0.80	0.43	0.75
19	0.34	0.83	0.45	0.75
21	0.34	0.84	0.47	0.75
22	0.32	0.86	0.48	0.75
23	0.30	0.87	0.48	0.75
24	0.27	0.88	0.48	0.74
25	0.23	0.89	0.45	0.73
26	0.23	0.90	0.48	0.73
27	0.23	0.90	0.50	0.74
29	0.18	0.90	0.44	0.73
31	0.18	0.92	0.50	0.73
33	0.16	0.92	0.47	0.72
34	0.16	0.93	0.50	0.73
37	0.14	0.93	0.46	0.72

^aTotal score of dichotomized frequency items of CAPE positive, negative and depressive symptoms. Item is rated as present if frequency is often or nearly always.