Validation of the Chinese version of the Reynolds’ suicidal ideation questionnaire: psychometric properties and its short version

Table 4 ROC curves for predicting suicidal ideation and suicidal attempts in the last 12 months

Measure	Area under curve	SE^a	Asymptotic significance^b	Asymptotic 95% CI
ROC curves for predicting suicidal ideation (44 suicidal thoughts out of 711)
SIQ	0.889	0.019	<0.001	0.852-0.926
SIQ-JR	0.891	0.018	<0.001	0.856-0.926
SIQ-JR-4	0.878	0.023	<0.001	0.832-0.923
Depression	0.795	0.033	<0.001	0.731-0.858
Hopelessness	0.661	0.045	<0.001	0.574-0.748
Anxiety	0.709	0.037	<0.001	0.636-0.782
ROC curves for predicting suicide attempts (20 suicide attempts out of 711)
SIQ	0.928	0.016	<0.001	0.897-0.960
SIQ-JR	0.918	0.018	<0.001	0.882-0.953
SIQ-JR-4	0.912	0.020	<0.001	0.872-0.952
Depression	0.850	0.042	<0.001	0.767-0.932
Hopelessness	0.736	0.070	<0.001	0.599-0.873
Anxiety	0.772	0.053	<0.001	0.669-0.875

Note. SIQ = Suicidal Ideation Questionnaire; SIQ-JR = Suicidal Ideation Questionnaire-Junior; SIQ-JR-4 = items 2, 3, 4, and 11 of the SIQ-JR.
a. Under the nonpmetric assumption.
b. Null hypothesis: true area = 0.5.

ISSN: 1477-7525