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Table 5 Prediction of overdose death by substance use and comorbid psychiatric disordersa

From: Prediction of psychiatric comorbidity on premature death in a cohort of patients with substance use disorders: a 42-year follow-up

  Wald p HR 95% CI for HR
  Lower Upper
Gender 10.546 0.001 2.03 1.33 3.12
Age at first admission 1.99 0.003 0.96 0.94 0.99
Cannabis 10.926 0.001 0.35 0.19 0.65
Opiates 45.332 0.001 3.27 2.32 4.62
Central stimulants 7.950 0.005 0.57 0.38 0.84
Sedatives/hypnotics/Barbiturates 1.398 > 0.05 0.54 0.20 1.50
Alcohol mixed with other subst. 2.508 > 0.05 0.48 0.20 1.19
No psychiatric disorder (No MI) 0.949 > 0.05 0.83 0.58 1.24
Substance induced psychosis (SIP) 2.218 > 0.05 0.47 0.17 1.27
Severe Mental Disorder (SMI) 0.112 > 0.05 0.90 0.47 1.78
Other mental disorders (OMD) 7.225 0.007 1.80 1.17 2.77
  1. No MI; no mental illness/ psychiatric disorder added to substance abuse. SIP; substance induced psychosis. SMI; severe mental illness with psychosis. OMD; other mental disorder without psychotic symptoms
  2. aEach predictor was analyzed with separate simple regressions and was contrasted with all other predictors