Objective: To describe the behavior characteristics and distribution associated with HIV infection among drug users(DUs),and explore the risk factors of injecting drugs and sharing syringes in Jiangsu province.Methods: An anonymous questionnaire survey was conducted to obtain the information about behaviors of DUs.Risk factors analysis of injecting drugs and sharing syringes was done with Logistic regression model.Results: A total of 952 DUs were investigated in the re-educated centers by labor.The intraven...