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. 2014 May 6;11:15. doi: 10.1186/1477-7517-11-15

Table 1.

Population characteristics of people who inject drugs in four southwestern Chinese cities in 2012

Population characteristics
Pooled sample
Matched Sample
  ( n = 1,035) (%) ( n = 975) (%)
Sex (male)
64.0
67.4
Age (in years)
 
 
 18 to 30
4.8
7.2
 31 to 40
32.9
41.2
 41 to 49
62.3
51.6
Ethnicity (Han)
87.3
83.3
Education (High school education or above)
32.5
31.1
Marital status
 
 
 Never married
38.4
42.6
 Currently married
29.9
31.1
 Divorced or widowed
31.7
26.3
Ever received methadone maintenance treatment (MMT) 84.7 87.9