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目的了解不同注射吸毒时间的吸毒者艾滋病知识的影响因素。方法于2003-2005年对四川省注射吸毒者进行3次横断面调查,调查内容包括人口学、注射吸毒行为、性行为及艾滋病相关知识等。应用K-means聚类法对调查对象的艾滋病知识水平进行聚类,然后对所有被调查者和不同注射吸毒时间(<1年,1～3年和>3年)的吸毒者进行累积Logistic回归分析。结果4310例被调查者中,注射吸毒<1年者占14.1%,1～3年占40.3%,>3年占45.6%。调查对象按艾滋病知识掌握的程度,被聚类为3类,I类2547人(好),II类共1447人(中),III类共313人(差)。注射吸毒<1年者艾滋病知识的独立影响因素包括少数民族、注射频率低、未戒过毒、未曾得到发放的安全套、未得到过性病艾滋病预防知识讲解及未曾得到宣传材料。注射吸毒1～3年者艾滋病知识的独立影响因素包括文化程度低、未曾得到宣传材料、未参与针具交换、未曾接受性病检查或治疗、2004年及2005年招募者、招募于达州、凉山、自贡。注射吸毒大于3年者艾滋病知识的独立影响因素包括文化程度低、少数民族、未戒过毒、未参与针具交换、2004年及2005年招募者。结论调查显示半数以上注射吸毒者吸毒时间小于3年。文化程度低、少数民族、未曾得到HIV干预服务者艾滋病知识水平较低。,提示针对不同吸毒时间吸毒者的干预宣传侧重有所不同。
Objective To understand the influencing factors of AIDS knowledge among drug addicts in different injecting time. Methods Three cross-sectional surveys were conducted among injecting drug users in Sichuan Province during 2003-2005. The survey included demography, drug abuse, sexual behavior and HIV / AIDS related knowledge. The K-means clustering method was used to cluster the knowledge level of AIDS among all the respondents. Then all the respondents and different drug abusers (> 1 year, 1 to 3 years and> 3 years) analysis. Results 4310 cases of respondents, injection drug abuse <1 years accounted for 14.1%, 1-3 years accounted for 40.3%,> 3 years accounted for 45.6%. According to the level of AIDS knowledge, the respondents were clustered into three categories: 2547 in category I (good), 1447 in category II (middle) and 313 in category III (poor). Independent factors of HIV / AIDS knowledge of drug addicts aged less than 1 year include ethnic minorities, low frequency of injection, condoms that have not been given any drugs, condoms that have not been distributed, HIV / AIDS prevention without STD knowledge, and no publicity materials. Injecting drug 1-3 years of AIDS independent knowledge of factors including low education, did not get promotional materials, did not participate in needle exchange, never received STD examination or treatment, recruited in 2004 and 2005, recruited in Dazhou, Liangshan, Zigong. Independent factors affecting HIV / AIDS knowledge of people who had been injecting drugs for more than 3 years included low education, ethnic minorities, non-drug addiction, non-participation in needle exchange, recruits in 2004 and 2005. Conclusions Surveys show that more than half of injecting drug users spend less than 3 years. Low level of education, ethnic minorities, HIV service providers who have not received HIV knowledge is low. , Suggesting that interventions for drug addicts with different drug use periods focus more differently.