Table 3.
Differences between completers and non-completer: univariate analyses
| Total | Completers | Non-Completers | Test-statistic | P-value | ||
|---|---|---|---|---|---|---|
| N = 193 | N = 59 | N = 134 | ||||
| n | % | % | % | |||
| Gender | 1χ(1) = 0.050 | 0.823 | ||||
| Male | 107 | 55.44 | 54.24 | 55.97 | ||
| Female | 86 | 44.56 | 45.76 | 44.03 | ||
| Age | 1χ(2) = 7.309 | 4 0.026 | ||||
| < 25 yr | 16 | 8.29 | 1.69 | 11.19 | ||
| 26–50 yr | 159 | 82.38 | 93.22 | 77.61 | ||
| > 51 yr | 18 | 9.33 | 5.08 | 11.19 | ||
| Mean (sd) Age (years) | 36.86 (6.99) | 37.52 (10.09) | 2T(156) = 0.52 | 0.603 | ||
| Rurality | 1χ(1) = 2.934 | 0.087 | ||||
| MMM 1 (Metro) | 120 | 62.18 | 71.19 | 58.21 | ||
| MMM 2–6 (Non-Metro) | 73 | 37.81 | 28.81 | 41.79 | ||
| Depression on Entry (DASS) | 1χ(1) = 3.478 | 0.062 | ||||
| Normal-Mild | 85 | 45.95 | 55.93 | 41.27 | ||
| Moderate-Very Severe | 100 | 54.05 | 44.07 | 58.73 | ||
| Mean (sd) | 14.20 (10.80) | 17.46 (11.30) | 2T(183) = 1.86 | 0.065 | ||
| Anxiety on Entry (DASS) | 1χ(1) = 0.003 | 0.958 | ||||
| Normal-Mild | 81 | 43.78 | 44.07 | 43.65 | ||
| Moderate-Very Severe | 104 | 56.22 | 55.93 | 55.93 | ||
| Mean (sd) | 11.61 (8.31) | 13.31 (9.06) | 2T(183) = 1.22 | 0.224 | ||
| Stress on Entry (DASS) | 1χ(1) = 0.218 | 0.641 | ||||
| Normal-Mild | 102 | 55.14 | 57.63 | 53.97 | ||
| Moderate-Very Severe | 83 | 44.86 | 42.37 | 46.03 | ||
| Mean (sd) | 15.61 (8.41) | 17.89 (9.38) | 2T(183) = 1.59 | 0.114 | ||
| Primary Substance3 | ||||||
| Alcohol | 95 | 50.53 | 56.90 | 47.69 | 1χ(1) = 1.359 | 0.243 |
| Amphetamines | 31 | 16.49 | 8.62 | 20.0 | 1χ(1) = 3.771 | 0.052 |
| Cannabis | 18 | 9.57 | 6.90 | 10.77 | 1χ(1) = 0.695 | 0.405 |
| Heroin | 27 | 14.36 | 17.24 | 13.08 | 1χ(1) = 0.566 | 0.452 |
| Other Drugs | 17 | 9.04 | 10.34 | 8.46 | 1χ(1) = 0.173 | 0.678 |
| Self-Reported Problems | ||||||
| Non-Drug Addictions | 39 | 20.21 | 20.34 | 20.15 | 1χ(1) = 0.0009 | 0.976 |
| Aggression | 91 | 47.15 | 32.20 | 53.73 | 1χ(1) = 7.619 | 4 0.006 |
| Self-Harm/Suicidality | 113 | 58.55 | 45.76 | 64.18 | 1χ(1) = 5.725 | 4 0.017 |
| Risk Taking Behaviours | 159 | 82.81 | 84.75 | 81.95 | 1χ(1) = 0.2237 | 0.636 |
| WHOQOL-8 on Entry | Mean (sd) | Mean (sd) | Mean (sd) | |||
| Quality | 3.07 (0.99) | 3.10 (0.98) | 3.05 (0.98) | 2T(190) = −0.32 | 0.749 | |
| Health | 2.98 (1.04) | 2.91 (1.04) | 2.90 (1.05) | 2T(190) = −0.08 | 0.937 | |
| Energy | 3.16 (1.05) | 3.27 (1.11) | 3.11 (1.01) | 2T(190) = −0.97 | 0.333 | |
| Money | 3.01 (1.24) | 3.37 (1.29) | 2.88 (1.20) | 2T(190) = −2.57 | 4 0.011 | |
| Daily Living | 3.17 (1.13) | 3.15 (1.20) | 3.17 (1.10) | 2T(190) = 0.07 | 0.942 | |
| Self-Satisfaction | 2.50 (1.00) | 2.52 (1.06) | 2.50 (0.95) | 2T(190) = −0.19 | 0.850 | |
| Relationships | 2.67 (1.12) | 1.56 (1.15) | 1.77 (1.10) | 2T(190) = 1.19 | 0.236 | |
| Living Place | 3.07 (1.19) | 3.20 (1.16) | 3.03 (1.22) | 2T(190) = −0.92 | 0.357 | |
MMM = Modified Monash Model, a measure of location and medical service access, DASS = Depression, Anxiety, Stress Scale; WHOQOL-8 = World Health Organisation Quality of Life 8 Questions
1Chisquare test; 2T-test; 3N = 188, comparison made: primary substance us other primary drug substance; 4P<0.05