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目的比较东莞市社区招募的吸毒人群与戒毒所哨点监测吸毒人群HIV感染率及相关因素的差别。方法采用同伴推动抽样法(respondent-driven sampling,RDS)招募社区吸毒人群进行面对面的问卷调查,并采集静脉血进行HIV检测;哨点监测按哨点监测方案进行问卷调查和生物学检测。结果共招募和访谈303名社区吸毒人员,采集血样300份;哨点监测400人。社区吸毒人群HIV感染率为8.3%,哨点监测HIV感染率为4.0%,两者差异有统计学意义(χ2=5.84,P=0.022)。社区吸毒人群中,广西户籍人口比例、商业性行为比例、商业性行为时经常或总是使用安全套的比例、注射用药率、注射用药者中针具共用率均高于哨点监测。结论社区招募的吸毒人群HIV感染率高于戒毒所哨点监测;东莞市吸毒人群HIV感染处于中等流行水平,应加大对社区吸毒者的干预力度。
Objective To compare the differences of HIV infection rates and related factors between drug users and drug addicts recruited in Dongguan community. Methods Respondent-driven sampling (RDS) was used to recruite community-based drug addicts to conduct face-to-face questionnaires and venous blood samples were collected for HIV testing. The sentinel surveillance program was used to conduct questionnaire surveys and biological tests. Results A total of 303 community drug addicts were interviewed and interviewed, 300 blood samples were collected and 400 sentinel surveillance was conducted. The rate of HIV infection among community drug addicts was 8.3% and that of sentinel surveillance was 4.0% (χ2 = 5.84, P = 0.022). Among the drug addicts in the community, the proportion of census register population, proportion of commercial sex, frequent or always condom use in commercial sex, injection rate and needle sharing rate among injecting drug users were all higher than sentinel surveillance. Conclusion The HIV prevalence rate among drug addicts recruited in the community is higher than that of sentinel drug addicts. HIV infection among drug addicts in Dongguan is at a moderately prevalence level, and intervention efforts should be stepped up for community drug addicts.