Table 4. Area under curve for total scores and the subscales of the HCR-20.

Assessment instruments	AUC	Typ. error	Asymptotic significance (p)*	Asymptotic confidence interval at 95%
				Lower limit	Upper limit
HCR-20 Total†	0.98	0.01	0.000	0.95	1.011
H scale (historical)†	0.89	0.04	0.000	0.79	0.985
C scale (clinical)†	0.92	0.03	0.000	0.84	1.002
R scale (risk)†	0.80	0.06	0.001	0.67	0.936

Note. AUC: area under curve; HCR-20: The Historical Clinical Risk Management-20.

^*Under non-parametric scenario.

^†The contrast result variable has at least one draw between the positive true state group and the negative true state group. The statistical data may be biased.