Table 2.

Predictors of psychiatric admissions within 24 months postsupervision (n=1527)

Variables	Events/ person-years	Univariable analysis	P value	Multivariable analysis	P value
		sHR (95% CI)		asHR (95% CI)
Sex
Male	139/1604	1.0 (ref)		1.0 (ref)
Female	37/247	2.01 (1.40 to 2.90)	<0.001	1.84 (1.24 to 2.73)	0.003
Age at baseline (years)	—	0.94 (0.87 to 0.99)	0.032	0.94 (0.88 to 0.99)	0.043
Indigenous status
Non-Indigenous	122/1468	1.0 (ref)		1.0 (ref)
Indigenous	54/383	1.27 (0.92 to 1.75)	0.145	0.97 (0.68 to 1.40)	0.884
Previous incarceration
0–1 episode	136/1659	1.0 (ref)		1.0 (ref)
2–3 episodes	21/136	0.91 (0.58 to 1.44)	0.691	0.95 (0.59 to 1.53)	0.838
≥4 episodes	19/56	1.81 (1.09 to 2.00)	0.015	1.67 (1.01 to 2.78)	0.047
Head injury
No	97/1209	1.0 (ref)		1.0 (ref)
Yes	79/642	1.58 (1.18 to 2.13)	0.002	1.63 (1.20 to 2.21)	0.002
Alcohol and substance use disorder
Not present	117/1574	1.0 (ref)		1.0 (ref)
Present	59/277	2.74 (2.00 to 3.76)	<0.001	1.89 (1.29 to 2.77)	0.001
Personality disorder
Not present	154/1811	1.0 (ref)		1.0 (ref)
Present	22/40	6.52 (4.03 to 10.53)	<0.001	3.66 (2.06 to 6.48)	<0.001
Psychosis
Not present	150/1769	1.0 (ref)		1.0 (ref)
Present	26/82	3.44 (2.02 to 5.88)	<0.001	1.33 (0.70 to 2.53)	0.379

Age at baseline (expiration of criminal justice supervision) is a continuous variable.

asHR, adjusted subdistribution HR; sHR, subdistribution HR.