Vietnam (2005): HIV/AIDS TRaC Study among Injecting Drug Users in Mong Cai, Uong Bi, and Thai Nguyen City First Round

Tracking surveys serve as tools to inform programming by routinely collecting data from cross-sections of populations at risk for HIV/AIDS and other adverse health outcomes. This survey among injecting drug users (IDUs) aimed to: 1) identify and describe segments of the population in terms of needle sharing in the three months prior to the survey; 2) understand the needle sharing behaviors of IDUs; 3) explore the sexual behaviors and condom use of IDUs; and 4) apply study findings to interventions designed for reducing the risk of HIV transmission among IDUs. Respondent-Driven Sampling (RDS) was used to recruit 417 male IDUs aged 15 to 45 who live in Uong Bi and Mong Cai towns in Quang Ninh province and Thai Nguyen City in Thai Nguyen province. A screening questionnaire and main questionnaire were the survey instruments. The questionnaire collected information on socio-demographic characteristics, drug use and needle sharing behaviors, opinions about needle-sharing practices, beliefs and knowledge about HIV infection, sexual activity and condom use, and exposure to harm reduction and VCT services. Multivariate analyses were performed to identify significant factors associated with needle sharing and condom use. Simple frequencies and means were run on descriptive data to permit monitoring of project indicators.

追踪调查（Tracking surveys）是一类通过定期从人类免疫缺陷病毒（HIV）/艾滋病（AIDS）及其他不良健康结局高危人群的横断面样本中采集数据，为项目规划提供决策支撑的研究工具。本次针对注射毒品使用者（Injecting Drug Users, IDUs）的调查旨在达成以下目标：1）识别并描述调查前三个月内存在针具共用行为的该群体细分特征；2）解析注射毒品使用者的针具共用行为模式；3）探究注射毒品使用者的性行为与安全套使用情况；4）将研究结果应用于旨在降低注射毒品使用者群体中HIV传播风险的干预实践。本次研究采用应答者驱动抽样（Respondent-Driven Sampling, RDS）方法，共招募417名年龄介于15至45岁的男性注射毒品使用者，其居住地涵盖广宁省翁门市、芒街市以及太原省太原市。调查工具包含筛查问卷与正式主问卷两类，问卷采集的信息包括社会人口学特征、毒品使用与针具共用行为、针对针具共用行为的认知态度、对HIV感染的认知与信念、性行为及安全套使用情况，以及接触减害服务与艾滋病病毒自愿咨询检测（Voluntary Counseling and Testing, VCT）服务的经历。数据分析环节采用多变量分析法，识别与针具共用行为及安全套使用行为相关的显著影响因素；同时对描述性数据计算简单频数与均值，以实现项目监测指标的追踪与评估。