Skip to main content

Table 3 General characteristics of study participants1

From: The therapeutic effects of methylphenidate and matrix-methylphenidate on addiction severity, craving, relapse and mental health in the methamphetamine use disorder

  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. 1 Data are mean ± SDs
  2. 2 Obtained from One-Way ANOVA
  3. † Obtained from Fisher’s Exact test
  4. †† Obtained from Pearson Chi-square test