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Table 1 Socio-economic demographic of participants

From: Changes in quality of life and its associated factors among illicit drug users in Vietnamese mountainous provinces: a 12-month follow-up study

CharacteristicsDien BienLai ChauYen BaiTotalp-value
n%n%n%n%
Age group
  < 301817.82525.088.15117.0< 0.01
 30–394342.63636.02929.310836.0 
 40–492928.72929.04949.510735.7 
  ≥ 501110.91010.01313.13411.3 
Ethnicity
 Kinh6261.43939.07575.817658.7< 0.01
 Tay22.022.01010.1144.7 
 Thai3534.74141.055.18127.0 
 Others22.01818.099.1299.7 
Education
  < High school5554.57373.04040.816856.2< 0.01
 High school3837.62020.04748.010535.1 
  > High school87.977.01111.2268.7 
Marital status
 Single3130.72828.02020.27926.30.01
 Live with spouse/ partner5655.56666.05555.617759.0 
 Widow/ Divorced1413.966.02424.24414.7 
Occupation
 Unemployment87.977.099.1248.00.14
 Freelancer8382.28888.07878.824983.0 
 Worker/ White-collar worker11.011.077.193.0 
 Others98.944.055.1186.0