Table 2.

Prevalence of mental health diagnoses across the 2003, 2009 and 2015 YPICHS samples.

	Survey	n	Prevalence (%)	OR[95% CI]	p	aOR [95% CI]	p
Disruptive behavioural disorder	2003	217	125 (57.6)	1.00 [ref]
	2009	293	203 (69.3)	1.66[1.15, 2.39]	< .01	1.58[1.05, 2.37]	.03
	2015	189	112 (59.3)	1.07 [0.72, 1.59]	.74
Anxiety disorder	2003	213	69 (32.4)	1.00 ref
	2009	293	94 (32.1)	0.99 [0.68, 1.44]	.94
	2015	189	47 (24.9)	0.69 [0.45, 1.07]	.10
Mood disorder	2003	212	33 (15.6)	1.00 [ref]
	2009	293	68 (23.2)	1.64[1.04, 2.60]	.04	1.67[1.01, 2.76]	.04
	2015	189	21 (11.1)	0.68 [0.38, 1.22]	.19
Psychotic disorder	2003	214	29 (13.6)	1.00 [ref]
	2009	293	15 (5.1)	0.34[0.18, 0.66]	< .01	0.32[0.15, 0.67]	< .001
	2015	189	9 (4.8)	0.32[0.15, 0.69]	< .01	0.35[0.16, 0.78]	.01
Substance use disorder	2003	212	86 (40.6)	1.00 [ref]
	2009	293	186 (63.5)	2.57[1.79, 3.70]	< .001	2.28[1.54, 3.39]	<.001
	2015	189	123 (65.1)	2.73[1.82, 4.10]	< .001	2.40[1.55, 3.70]	<.001
Any of the above disorders	2003	217	157 (72.4)	1.00 [ref]
	2009	293	254 (86.7)	2.49[1.59, 3.90]	< .001	2.29[1.41, 3.72]	< .01
	2015	189	157 (83.1)	1.88[1.16, 3.04]	.01	1.57 [0.94, 2.65]	.09

Note: YPICHS = Young People in Custody Health Survey; OR = odds ratio; aOR = adjusted odds ratio; CI = confidence interval. Adolescent Psychopathology Scale (APS) used in 2003;Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children–Present and Lifetime version (K–SADS–PL) used in 2009 and 2015. Multivariate analyses include the following additional covariates: Indigenous status, language spoken at home, school attendance prior to incarceration, parental incarceration, previous incarceration and offence type.

Bolded = p significant at the < .05 level.