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. 2017 Apr 20;15:77. doi: 10.1186/s12955-017-0633-9

Table 4.

Factors associated with quality of life among respondents

Characteristics EQ5D - index EQ VAS
Coef 95% CI Coef 95% CI
Age group (vs < 30 years)
 > = 30 & < 40 years 0.12 –0.02; 0.26
Education (vs < High school)
 High school –0.16* –0.30;–0.01 3.59 –1.00; 8.19
 Above high school –0.39* –0.66; –0.12
Occupation (vs Unemployed)
 Self-employed 0.18* 0.05; 0.32
Income quintiles (vs Poorest)
 Rich 0.16 –0.02; 0.33 6.40* 0.21; 12.58
 Richest 0.26* 0.06; 0.46 12.05* 5.58; 18.52
Location (Son Duong vs Tuyen Quang) 0.12 –0.06; 0.29 –3.53 –8.72; 1.67
Body mass index (vs Underweight)
 Normal 0.35* 0.20; 0.50
Having acute disease (Yes vs No) –0.20* –0.36; –0.05
Using multiple substances (vs None)
 Abusing one substance –0.11 –0.24; 0.03 –9.92* –16.01; –3.83
 Abusing two or more substances –5.84 –13.07; 1.38
Episode of drug rehabilitation (vs None)
 >2 times 0.12 –0.04; 0.27
Receiving ART (Yes vs No) 7.52* 2.03; 13.02
Duration of MMT (months) 0.00 –0.01; 0.01 0.01 –0.26; 0.28
Receiving inpatient care (Yes vs No) –0.53* –0.75;–0.31 –26.66* –34.67; –18.65
Receiving outpatient care (Yes vs No) –0.20* –0.40;–0.01

* p < 0.05