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Table 2 Drug Use Behavioral Factors Associated with HIV Seropositivity among IDUs in Xichang City, Sichuan Province, China

From: Continued spread of HIV among injecting drug users in southern Sichuan Province, China

Factor

N

% HIV+ [N]

Odds Ratio [95% CI]

p-value

During of drug injection

    

   <3 years

162

18.5 [30]

1.0

 

   ≥3 years

152

17.1 [26]

0.91 [0.51, 1.62]

0.74

Using heroin in the last 3 months

    

   <7 times/week

112

17.9 [20]

1.0

 

   ≥7 times/week

202

17.8 [36]

1.00 [0.54, 1.82]

0.99

Using heroin plus other drugs in the last 3 months

    

   <7 times/week

123

14.63 [18]

1.0

 

   ≥7 times/week

191

19.9 [38]

1.45 [0.78, 2.68]

0.23

Injecting drugs in the last 3 months

    

   <7 times/week

35

11.4 [4]

1.0

 

   ≥7 times/week

279

18.6 [52]

1.78 [0.60, 5.25]

0.29

Total times of sharing injecting equipments in the past

    

   0 times

117

7.7 [9]

1.0

 

   1–9 times

130

16.9 [22]

2.44 [1.08, 5.55]

 

   ≥10 times

67

37.3 [25]

7.14 [3.08, 16.56]

<0.01

Number of partners sharing injecting equipments in the past

    

   0 persons

117

7.7 [9]

1.0

 

   1–9 persons

157

22.9 [36]

3.57 [1.64, 7.75]

 

   ≥10 persons

40

27.5 [11]

4.55 [1.72, 12.03]

<0.01

Having new partners sharing injecting equipments in the last 3 months

    

   No

251

14.7 [37]

1.0

 

   Yes

63

30.2 [19]

2.50 [1.32, 4.74]

<0.01

Sharing needles and syringes in the last 3 months

    

   No

197

14.7 [29]

1.0

 

   Yes

117

23.1 [27]

1.74 [0.97, 3.11]

0.06

Sharing rinse water in the last 3 months

    

   No

233

15.4 [36]

1.0

 

   Yes

81

24.7 [20]

1.79 [0.97, 3.33]

0.06

Sharing cookers in the last 3 months

    

   No

234

15.4 [36]

1.0

 

   Yes

80

25.0 [20]

1.83 [0.99, 3.40]

0.05

Sharing cottons in the last 3 months

    

   No

301

17.3 [52]

1.0

 

   Yes

13

30.8 [4]

2.13 [0.63, 7.17]

0.24

Front-/back-loading in the last 3 months

    

   No

278

17.6 [49]

1.0

 

   Yes

36

19.4 [7]

1.13 [0.47, 2.72]

0.79