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Table 3 Predictors of Quality of Life change a from baseline to follow-up, N=118 patients

From: Quality of life improved following in-patient substance use disorder treatment

Parameter Bivariate analysis OR (95% CI) P-value b Multivariate analysis OR (95% CI) P-value c
Age 1.00 (0.96 – 1.05) 0.862  
Female gender 2.92 (1.12 – 6.71) 0.013 2.64 (1.12 - 6.22) 0.026
Education (years) 1.12 (0.92 –1.37) 0.269  
Relationship status, single 1.14 (0.43 – 2.80) 0.778  
Main diagnosis 0.93 (0.33 – 2.60) 0.891  
Severity scores     
Injection use 0.70 (0.31 – 1.53) 0.344  
Years of using most problematic substance 1.0 (0.96 – 1.01) 0.737  
Global Score Index: SCL-90R - GSI 1.72 (0.97 – 3.04) 0.064 1.52 (0.85-2.70) 0.157
Treatment variables     
Days in treatment 1.01 (0.10 – 1.02) 0.334  
Compulsory treatment 1.28 (0.56 – 2,94) 0.554   
Follow-up variables     
Abstinence at follow-up 1.51 (0.63 – 3.66) 0.356  
Time in a controlled environment (days)d 1.03 (0.98 1.03) 0.86  
  1. aThe dependent variable was a dichotomized QoL-5 score change, with a cut-off value of ≥ 0.2 (i.e., a large and clinically relevant QoL change).
  2. bP-value obtained from bivariate logistic regression.
  3. cP-value obtained from multivariable logistic regression; multivariable analysis included variables with p-values <0.20 in bivariate analyses.
  4. dTime in controlled environment last 30 days before follow-up interview.