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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Drug Alcohol Rev. 2017 Aug 1;37(3):333–339. doi: 10.1111/dar.12589

Table 2.

Characteristics of study participants (N = 900)

Characteristics Count (%)
Gender
 Male 881 97.9
 Female 19 2.1
Age, years
 Mean (SD) 36.8 8.0
 18 – 30 211 25.6
 31 – 35 171 20.7
 36 – 40 159 19.3
 41+ 284 34.4
Marital status
 Married or living as married 652 72.4
 Not married 248 27.6
Family annual income (VND)
 Mean (SD) 77,130,782 114,113,852
 Less than 30,000,000 257 28.7
 30,000,001–50,000,000 227 25.3
 50,000,001–80,000,000 220 24.6
 More than 80,000,000 192 21.4
Education
 Mean (SD) 9.8 3.0
 Less than primary education 42 4.7
 Completed basic education 778 86.5
 Greater than basic education 79 8.8
Harm reduction programs usage
 Ever used MMT 264 29.3
 Ever used NEP 180 20.0
 Ever used MMT and NEP 69 7.7
Access to care (M ± SD) 5.2 1.5
Drug-related stigma (M ± SD) 58.5 8.8

MMT, methadone maintenance therapy; NEP, needle exchange program.