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Table 2 Changes in mean (s.d.) in outcomes 3 and 12 months post-treatment

From: Opiate agonist treatment to improve health of individuals with opioid use disorder in Lebanon

  3-month assessment (n = 75) 12-month assessment (n = 36)
Variable and group Baseline Post 3 months p value Effect size Baseline Post 3 months Post 12 months p value Effect size
EUROHIS Quality of Life Scale (8–40) mean (s.d.) 21.82 (6.59) 24.93 (6.32) p ≤ 0.001 Cohen’s d = 0.37 22.37 (6.22) 24.16 (5.82) 24.84 (6.92) p = 0.05 η 2 = 0.14
Anxiety (HADS) (0–21) mean (s.d.) 9.62 (4.09) 7.29 (4.55) p = 0.001 Cohen’s d = 0.34 9.27 (3.84) 7.18 (4.19) 6.91 (3.91) p = 0.006 η 2 = 0.24
Depression (HADS) (0–21) mean (s.d.) 8.97 (3.56) 7.66 (3.69) p = 0.03 Cohen’s d = 0.21 8.94 (3.58) 8.01 (3.54) 7.65 (3.82) p = 0.19 η 2 = 0.17
  1. HADS Hospital Anxiety Depression, s.d. standard deviation, d Cohen’s d effect size, η 2 eta-squared effect size