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Table 3 Linear mixed model of SCL-10 adjusted for clinical and sociodemographic factors

From: Substance use and symptoms of mental health disorders: a prospective cohort of patients with severe substance use disorders in Norway

 

Fixed effects

 

Baseline

Change per year

n = 707

Estimate (95% CI)

Slope (95% CI)

Factor impact* on SCL-10 sum score at baseline and changes per year from baseline

 SCL-10 sum score

18.1 (15.9 to 20.2)

0.6 (−1.6 to 2.9)

 Female

1.8 (0.7 to 3.0)

0.4 (−0.9 to 1.8)

 Age per 10 years

0.0 (−0.1 to 0.0)

0.0 (0.0 to 0.1)

Clinical factors

 Injecting substance use

  

 Injecting at least once last 12 months

0.6 (−0.7 to 1.8)

−0.3 (−1.6 to 1.0)

Frequent use of substances

 Alcohol

0.7 (−0.6 to 1.9)

0.1 (−1.2 to 1.4)

 Cannabis

1.3 (0.2 to 2.5)

0.3 (−0.9 to 1.4)

 Stimulants (amphetamines/ cocaine)

−2.7 (−4.1 to − 1.4)

− 0.2 (−1.6 to 1.3)

 Opioids (other than opioid dispensed on OAT)

2.7 (1.1 to 4.2)

−2.6 (− 4.7 to − 0.4)

 Benzodiazepines

3.6 (2.4 to 4.8)

− 0.4 (− 1.7 to 0.8)

Sociodemographic factors

 Level of education

−0.1 (− 0.7 to 0.6)

−0.6 (− 1.3 to 0.1)

 Unstable living conditions

1.7 (0.0 to 3.3)

1.1 (−1.0 to 3.3)

 Worrying debt situation

2.2 (1.1 to 3.3)

0.4 (−0.7 to 1.6)

  1. SCL-10 = Symptoms checklist 10; ten items scale for measuring mental health status/psychological distress, CI = confidence interval
  2. *Age per 10 years (centered according to mean age 43 years), level of education was coded 0–4 with 4 as the highest educational level, living conditions; unstable situation homeless or non-permanent residence, worrying debt situation: including any legal or illegal fees and debt, injecting substance use: during last 12 months