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Table 3 Factors associated with HIV infection among injection drug users in three highly endemic regions of China, as predicted by a multivariable logistic regression model

From: Predictors of HIV infection and prevalence for syphilis infection among injection drug users in China: Community-based surveys along major drug trafficking routes

Factors

AOR (95% CI)

P

Three sites

  

   Duration of injection drug use: ≥ 5 years versus <5 years

3.5 (1.4–8.5)

<0.01

   Awareness of HIV transmission: awareness vs. unawareness

2.0 (1.0–3.3)

<0.05

   Yili Prefecture, Xinjiang: vs. Nanning, Guangxi

7.7 (4.4–13.4)

<0.001

   Honghe Prefecture, Yunnan: vs. Nanning, Guangxi

15.1 (7.2–31.7)

<0.001

Site 1, Nanning, Guangxi

  

   Duration of injection drug use: ≥ 5 years vs. <5 years

4.5 (1.3–15.6)

0.02

   Sex: Male vs. female

3.3 (1.1–10.2)

0.04

Site 2, Yili, Xinjiang

  

   Shared injection needle and/or syringe: Yes vs. No

5.7 (1.1–29.1)

0.04

   Age: ≥ 30 years old vs. <30 years old

3.7 (1.2–11.8)

0.03

Site 3, Honghe, Yunnan

  

   Frequent drug injection: 0–1 time/week vs. ≥ 2 times/week

3.7 (1.5–8.7)

<0.001

   Awareness of HIV transmission: awareness vs. unawareness

2.5 (1.0–6.0)

0.05

   Monthly income: ≥ 300 Yuan vs. <300 Yuan

1.8 (1.0–3.4)

<0.05

  1. AOR = Adjusted Odds Ratio