Table 3. Effect of mental health and substance use treatment services on hazard of re-incarceration.

Model	Mental health services	Substance use services
	All	Not on parole	On parole
	(n = 1,115)	(n = 442)	(n = 673)
	HR (95%CI)	HR (95%CI)	HR (95%CI)
Model 1a	2.57 (2.01, 3.29)	4.14 (2.92, 5.88)	1.49 (1.16, 1.92)
Model 2b	1.97 (1.43, 2.71)	2.99 (2.03, 4.40)	1.10 (0.82, 1.46)
Model 3c	1.76 (1.23, 2.51)	3.16 (2.09, 4.78)	1.07 (0.80, 1.43)

^aUnadjusted

^bAdjusted for pre-release covariates

^cAdjusted for pre-release covariates and post-release (time-varying) covariates