Having a job in the last 6 months(OR = 0.57,95% CI:0.38-0.86),yearly income(OR = 0.58,95% CI:0.38-0.86)and smoking cigarettes at the age of less than 15 before initial drug use(OR = 1.79,95% CI:1.18-2.72)were associated with direct sharing of injections.
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