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

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

   Before taken on by ACT After taken on by ACT Change before-after taken on by ACT
Mean SD Mean SD Meana 95 % confidence interval P-valueb
New admissions Non-problematic substance usec 2.79 3.06 2.78 5.07 0.05 −1.31 to 1.40 0.945
Problematic substance used 3.71 4.48 3.26 4.48 0.45 −0.68 to 1.57 0.436
Total inpatient days Non-problematic substance usec 106.12 133.83 50.55 57.18 58.24 7.83 to 108.64 0.024
Problematic substance used 131.15 167.51 69.01 88.54 64.09 21.90 to 106.28 0.003
Involuntary inpatient days Non-problematic substance usec 51.53 116.51 20.78 40.07 29.96 −14.92 to 74.83 0.191
Problematic substance used 101.05 163.09 47.57 75.99 55.69 19.16 to 92.22 0.003
  1. aPositive means indicate mean reduction in outcome after being taken on by ACT compared to before while negative means indicate mean increase in outcome
  2. bAnalyses of change using linear mixed models, unadjusted model
  3. cNon-substance group n = 58 (41 %), d Substance group n = 84 (59 %)