Table 4.

Cutoff values of SHAI and SAS

Cutoff value	CSHAI			Cutoff value	SAS
	Sensitivity	Specificity	Youden index		Sensitivity	Specificity	Youden index
−1.00	1.000	0.000	0.000	24.00	1.000	0.000	0.000
1.00	1.000	0.014	0.014	25.50	1.000	0.018	0.018
2.50	1.000	0.036	0.036	26.50	1.000	0.032	0.032
3.50	0.974	0.054	0.029	27.50	1.000	0.054	0.054
4.50	0.974	0.072	0.047	29.00	1.000	0.105	0.105
5.50	0.949	0.119	0.068	30.50	1.000	0.177	0.177
6.50	0.923	0.162	0.086	31.50	1.000	0.235	0.235
7.50	0.897	0.224	0.121	32.50	1.000	0.300	0.300
8.50	0.872	0.318	0.189	34.00	1.000	0.361	0.361
9.50	0.872	0.408	0.280	35.50	1.000	0.433	0.433
10.50	0.821	0.502	0.322	36.50	1.000	0.509	0.509
11.50	0.795	0.570	0.365	37.50	1.000	0.570	0.570
12.50	0.769	0.657	0.426	39.00	1.000	0.661	0.661
13.50	0.692	0.693	0.385	40.50	1.000	0.715	0.715
14.50	0.667	0.762	0.428	41.50	1.000	0.776	0.776
15.50	0.590	0.812	0.402	42.50	1.000	0.819	0.819
16.50	0.538	0.852	0.390	44.00	1.000	0.874	0.874
17.50	0.487	0.884	0.372	45.50	1.000	0.921	0.921
18.50	0.359	0.895	0.254	46.50	1.000	0.957	0.957
19.50	0.256	0.917	0.173	47.50	1.000	0.978	0.978
20.50	0.231	0.942	0.173	49.00	1.000	0.993	0.993
21.50	0.231	0.949	0.180	50.50	0.872	0.993	0.865
22.50	0.128	0.968	0.096	51.50	0.795	0.993	0.788
23.50	0.103	0.975	0.077	52.50	0.615	0.993	0.608
24.50	0.103	0.978	0.081	54.00	0.462	0.993	0.454
26.00	0.026	0.982	0.008	55.50	0.410	0.993	0.403
28.00	0.026	0.989	0.015	56.50	0.333	0.993	0.326
29.50	0.026	0.993	0.018	57.50	0.256	0.993	0.249
30.50	0.026	0.996	0.022	59.00	0.179	0.993	0.172
42.50	0.026	1.000	0.026	60.50	0.128	0.993	0.121
55.00	0.000	1.000	0.000	62.00	0.077	0.996	0.073
–	–	–	–	64.00	0.051	0.996	0.048
–	–	–	–	67.50	0.000	0.996	−0.004
–	–	–	–	71.00	0.000	1.000	0.000

Abbreviations: CSHAI, Chinese-version Short Health Anxiety Inventory; SAS, Zung Self-Rating Anxiety Scale.