吸毒人群从首次吸毒到静脉注射吸毒的转变研究

目的:了解四川省某地区吸毒人群从首次吸毒到静脉注射吸毒的发生率及影响因素.方法:于2002年11月在社区招募吸毒人员382人,调查该人群的社会人口学特征,首次吸毒、首次静脉注射吸毒时间等.结果:从首次吸毒到静脉注射吸毒的发生率为32.56/100人年.在多因素分析中,首次吸毒时年龄(HR值为1.66;95%CI为1.35-2.05)、民族(HR值为1.38;95%CI为1.10-1.74)、文化(HR值为0.75;95%CI为0.60-0.93)和收入(HR值为0.64;95%CI为0.52-0.79)与首次吸毒转变为静脉吸毒的发生率有统计学意义.结论:应针对不同的民族、文化、收入及年龄特点,对吸毒人群开展健康教育和行为干预,控制艾滋病病毒的传播.

Survey of Transition from Initial Drug Using to Drug Injection in Liangshan of Sichuan Province, China

Objective: To estimate the incidence of transition from initial drug using to drug injection in Sichuan Province. Methods: During November 2002, a community-based survey was conducted to investigate the demographic characteristics, initial time of drug use and first time of injection drug use among 382 drug users. Results: The average incidence for the transition from initial drug use to injection drug use was 32.56/100 person years. According to the multivariate Cox proportional hazard regression model, ethnicity (HR,1.38; 95%CI,1.10-1.74), age of initial drug use (HR,1.66; 95%CI,1.35-2.05), education level (HR,0.75;95%CI,0.60-0.93) and income (HR, 0.64;95% CI, 0.52-0.79) were independently associated with time from initiation of drug use to injection drug use, respectively. Conclusions: In order to prevent HIV transmission among drug users in Sichuan province, health education and behavior intervention should be enhanced for low education level, low income and minority people.