| Patients included (n = 128) | Patients excluded (n = 39) |  | ||
---|---|---|---|---|---|
 | n | Mean/% | n | Mean/% | p value |
Age at first time of drug use | 128 | 22.00 | 39 | 21.32 | .68b |
Duration of Addiction (in years) | 128 | 5.20 | 39 | 5.25 | .99b |
Duration of amphetamines dependence (in years) | 128 | 2.20 | 39 | 2.02 | .79b |
Family support | Â | Â | Â | Â | .99a |
 Yes | 32 | 25.00 % | 9 | 23.08 % |  |
 No | 96 | 75.00 % | 30 | 76.92 % |  |
Having (at least) an addict in the family | Â | Â | Â | Â | .79a |
 Yes | 46 | 35.94 % | 13 | 33.33 % |  |
 No | 82 | 64.06 % | 26 | 66.67 % |  |
Injection experience | Â | Â | Â | Â | .59a |
 Yes | 26 | 20.31 % | 9 | 23.08 % |  |
 No | 102 | 79.69 % | 30 | 76.92 % |  |
Poly substance abuse | Â | Â | Â | Â | .63a |
 Yes | 110 | 85.94 % | 32 | 82.05 % |  |
 No | 18 | 14.06 % | 7 | 17.95 % |  |
Amphetamines dependence as the primary diagnosis | Â | Â | Â | Â | .99a |
 Yes | 113 | 88.29 % | 34 | 87.18 % |  |
 No | 18 | 11.72 % | 5 | 12.82 % |  |
Treatment experience | Â | Â | Â | Â | .99a |
 Yes | 95 | 74.22 % | 29 | 74.36 % |  |
 No | 33 | 25.78 % | 10 | 25.64 % |  |
A history of residential treatment in camps | Â | Â | Â | Â | .76a |
 Yes | 78 | 60.94 % | 22 | 56.41 % |  |
 No | 50 | 39.06 % | 17 | 43.59 % |  |