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Table 5 Comparison between completers and non-completers (group) on change in DASS, WHOQOL-8 and K10 from entry to exit (time)

From: An evaluation of the maintenance to abstinence (MTA) program in achieving abstinence in opioid users and improving mental health and quality of life

  Completers Non-completers Time effect Completion effect Time * completion effect
Entry Exit Entry Exit DF F P DF F P DF F P
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
DASS
 Depression 20.5 (8.61) 7.8 (6.30) 20.2 (10.01) 12.8 (10.42) (1,90) 82.37 < 0.001 (1,90) 2.51 0.117 (1,90) 5.35 0.023
 Anxiety 16.5 (8.97) 6.4 (5.49) 16.9 (10.77) 12.3 (9.94) (1,90) 51.64 < 0.001 (1,90) 4.05 0.047 (1,90) 7.02 0.010
 Stress 20.8 (7.64) 10.2 (6.91) 21.5 (9.23) 16.2 (9.92) (1,90) 54.66 < 0.001 (1,90) 5.81 0.018 (1,90) 6.12 0.015
WHOQOL-8
 Total score 20.8 (5.68) 29.3 (5.69) 19.2 (6.67) 24.9 (8.57) (1,91) 80.42 < 0.001 (1.91) 6.88 0.010 (1,91) 3.27 0.074
 Quality 1.7 (0.85) 2.9 (0.84) 1.6 (1.03) 2.3 (1.16) (1,90) 55.87 < 0.001 (1.90) 5.96 0.017 (1,90) 3.25 0.075
 Health 1.4 (0.96) 2.6 (0.92) 1.1 (0.95) 2.1 (1.15) (1,90) 73.58 < 0.001 (1,90) 5.35 0.023 (1,90) 1.10 0.298
 Energy 1.5 (1.07) 2.4 (0.94) 1.4 (1.05) 1.9 (1.26) (1,90) 30.49 < 0.001 (1,90) 3.08 0.083 (1,90) 2.49 0.118
 Money 1.6 (1.12) 2.5 (1.15) 1.5 (1.21) 2.0 (1.33) (1,90) 26.15 < 0.001 (1,90) 1.47 0.229 (1,90) 1.55 0.216
 Daily living 1.8 (1.17) 2.7 (0.92) 1.4 (1.14) 2.3 (1.14) (1,90) 37.06 < 0.001 (1,90) 5.84 0.018 (1,90) 0.01 0.935
 Self-satisfaction 1.2 (0.97) 2.6 (0.98) 1.1 (0.87) 2.1 (1.28) (1,90) 81.20 < 0.001 (1,90) 3.26 0.074 (1,90) 2.32 0.131
 Relationships 1.6 (1.00) 2.6 (0.90) 1.3 (1.21) 2.2 (1.17) (1,90) 52.19 < 0.001 (1,90) 3.94 0.050 (1,90) 0.16 0.692
 Living place 1.9 (1.11) 3.0 (0.79) 1.8 (1.50) 2.6 (1.22) (1,90) 39.33 < 0.001 (1,90) 1.71 0.194 (1,90) 1.12 0.292
K10a
 Total score 28.1 (8.00) 19.3 (5.91) 31.0 (8.43) 23.7 (8.84) (1,70) 44.30 < 0.001 (1,70) 6.03 0.017 (1,70) 0.41 0.525
  1. Significant data points are highlighted using italic typeface (significant P values)
  2. DF degrees of freedom (variance), F F ratio, P p value for F test
  3. aK10 date is missing 5 responses from entry and 28 responses from exit