Table 3 Health status, perceived discrimination and history of drug addiction among MMT patients by different service preference

All patients

170

33.3

340

66.7

510

100.0

Self-reported health problems

 Mobility

14

8.2

16

4.8

30

5.9

0.12

 Self-care

8

4.7

11

3.3

19

3.8

0.42

 Usual activities

6

3.5

14

4.2

20

3.9

0.73

 Pain or discomfort

11

6.5

66

19.6

77

15.2

<0.0

 Anxiety or depression

10

5.9

72

21.4

82

16.2

<0.01

Self-reported HIV status

 Negative

149

87.7

289

85.8

438

86.4

0.84

 Positive

13

7.7

30

8.9

43

8.5

 N/A

8

4.7

18

5.3

26

5.1

Discrimination

 Perceived in family

1

0.6

5

1.5

6

1.2

0.39

 Perceived in community

18

10.6

20

5.9

38

7.5

0.06

 Ever disclosed health status

117

68.8

271

79.7

388

76.1

0.01

Drug use

History of drug injection

123

72.4

249

73.9

372

73.4

0.71

Concurrent drug use

6

3.5

9

2.7

15

3.0

0.59

Mean

SD

Mean

SD

Mean

SD

Age at first drug use

23.9

6.4

24.3

6.3

24.2

6.3

0.77

Time since first drug use (year)

13.6

6.2

13.3

6.1

13.4

6.1

0.31

Time since first drug inject(year)

10.4

5.1

9.9

5.2

10.1

5.2

0.20

Number of previous drug rehabilitation

4.7

5.6

4.7

6.1

4.7

5.9

0.47

MMT duration (month)

20.2

11.7

21.1

11.9

20.8

11.8

0.78