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Table 1 Socio-demographic characteristics of the subjects (n = 122)

From: Improvement of quality of life following 6 months of methadone maintenance therapy in Malaysia

  frequency %
Gender   
Male 122 100.0
Age when joining MMT (years)   
 < 20 1 0.8
 20 – 29 15 12.3
 30 – 39 53 43.4
 40 – 49 43 35.2
 50 – 59 10 8.2
Overall mean = 38.4 ± 7.96   
Ethnicity   
 Malay 113 92.6
 Chinese 2 1.6
 Indian 7 5.7
Marital status   
 Single 52 42.6
 Married 52 42.6
 Divorced 17 13.9
 Widower 1 0.8
Employment status   
 Unemployed 11 9.0
 Part time employment 15 12.3
 Full time employment 96 78.7
Educational level   
 Primary 9 7.4
 Junior secondary 44 36.1
 Senior secondary 65 53.3
 Tertiary education 4 3.3
Age starting illicit drug use (years)   
 11 – 15 19 15.6
 16 – 20 66 54.1
 21 – 25 32 26.2
 > 25 5 4.1
Overall mean = 19.3 ± 3.65   
HIV status   
 Negative 95 77.9
 Positive 21 17.2
 Unknown 6 4.9
Hepatitis C status   
 Negative 22 18.0
 Positive 89 73.0
 Unknown 11 9.0