Hospitalisation of severely mentally ill patients with and without problematic substance use before and during Assertive Community Treatment: an observational cohort study

Table 2 Hospitalisation during two years before and after ACT: participants with and without problematic substance use

		Before taken on by ACT		After taken on by ACT		Change before-after taken on by ACT
		Mean	SD	Mean	SD	Mean^a	95 % confidence interval	P-value^b
New admissions	Non-problematic substance use^c	2.79	3.06	2.78	5.07	0.05	−1.31 to 1.40	0.945
New admissions	Problematic substance use^d	3.71	4.48	3.26	4.48	0.45	−0.68 to 1.57	0.436
Total inpatient days	Non-problematic substance use^c	106.12	133.83	50.55	57.18	58.24	7.83 to 108.64	0.024
Total inpatient days	Problematic substance use^d	131.15	167.51	69.01	88.54	64.09	21.90 to 106.28	0.003
Involuntary inpatient days	Non-problematic substance use^c	51.53	116.51	20.78	40.07	29.96	−14.92 to 74.83	0.191
Involuntary inpatient days	Problematic substance use^d	101.05	163.09	47.57	75.99	55.69	19.16 to 92.22	0.003

^aPositive means indicate mean reduction in outcome after being taken on by ACT compared to before while negative means indicate mean increase in outcome
^bAnalyses of change using linear mixed models, unadjusted model
^cNon-substance group n = 58 (41 %), ^d Substance group n = 84 (59 %)

ISSN: 1471-244X