| |
Matrix group (n = 20)
|
Methylphenidate group (n = 22)
|
Matrix combination with methylphenidate group (n = 21)
|
Control group (n = 22)
|
P2
|
|---|
|
Age (y)
|
30.7 ± 6.1
|
31.8 ± 5.6
|
29.4 ± 2.7
|
31.0 ± 2.7
|
0.39
|
|
Education status (%)
|
|
Elementary
|
5 (25)
|
9 (40.9)
|
8 (38.1)
|
7 (31.8)
| |
|
Intermediate
|
8 (40)
|
4 (18.3)
|
3 (14.3)
|
7 (31.8)
| |
|
Diploma
|
5 (25)
|
6 (27.3)
|
8 (38.1)
|
5 (22.7)
|
0.52†
|
|
College
|
0 (0)
|
3 (13.6)
|
1 (4.8)
|
1 (4.5)
| |
|
Bachelor of science (BSc)
|
2 (10)
|
0 (0)
|
1 (4.8)
|
2 (9.1)
| |
|
Marital status (%)
|
|
Permanent marriage
|
8 (40)
|
3 (13.6)
|
6 (28.6)
|
8 (36.4)
| |
|
Single
|
6 (30)
|
11 (50)
|
6 (28.6)
|
7 (31.8)
|
0.49††
|
|
Widow/Divorced
|
6 (30)
|
8 (36.4)
|
9 (42.9)
|
7 (31.8)
| |
|
Job (%)
|
|
Unemployed
|
12 (60)
|
14 (63..6)
|
7 (33.3)
|
8 (36.4)
| |
|
Employed
|
2 (10)
|
1 (4.5)
|
2 (9.5)
|
0 (0)
|
0.09†
|
|
Others
|
6 (30)
|
7 (31.8)
|
12 (57.1)
|
14 (63.6)
| |
|
Methadone dose (mL/d)
|
16.8 ± 4.4
|
18.6 ± 5.3
|
18.1 ± 5.7
|
18.0 ± 3.7
|
0.67
|
|
Duration of MMT (y)
|
4.7 ± 2.3
|
4.1 ± 2.0
|
5.4 ± 2.1
|
4.1 ± 1.9
|
0.16
|
|
Dose of METH use (g/week)
|
0.35 ± 0.2
|
0.43 ± 0.2
|
0.35 ± 0.2
|
0.43 ± 0.2
|
0.55
|
|
Frequency of METH use (week)
|
2.9 ± 1.6
|
3.7 ± 2.0
|
3.4 ± 1.8
|
3.4 ± 1.7
|
0.53
|
|
Duration of METH use (y)
|
1.8 ± 0.83
|
2.1 ± 0.94
|
1.7 ± 0.76
|
2.3 ± 0.94
|
0.12
|
- 1 Data are mean ± SDs
- 2 Obtained from One-Way ANOVA
- † Obtained from Fisher’s Exact test
- †† Obtained from Pearson Chi-square test
