De la Fuente L, Barrio G, Vicente J, Bravo M J, Lardelli P
Ministerio de Sanidad y Consumo, Madrid, Spain.
Int J Epidemiol. 1994 Aug;23(4):805-11. doi: 10.1093/ije/23.4.805.
Of critical importance to AIDS control in Spain is the analysis of geographical variation and trend over time in the prevalence of intravenous administration in heroin users, as well as the factors associated with the use of this route.
We carried out a cross-sectional study of 27,655 people admitted to outpatient treatment for heroin dependence in 15 of the 17 Autonomous Communities of Spain during 1991, using data provided by the State Information System on Drug Abuse (SEIT). To assess the association of some factors with use of the intravenous route crude and logistic analysis was performed.
The prevalence of intravenous administration in this population was 64.4% with regional differences ranging between 33% and 90%. Crude and logistic analysis demonstrated a strong association with two factors in addition to geography: the year of first use and the age at first use (the earlier the first use, the greater the strength of the association).
These findings are of paramount importance for the control of the HIV epidemic in Spain and further study in this area could help to guide policy development.
对于西班牙的艾滋病防控而言，分析海洛因使用者静脉注射流行率的地理差异和随时间的变化趋势，以及与这种注射方式相关的因素至关重要。
我们利用国家药物滥用信息系统（SEIT）提供的数据，对1991年西班牙17个自治区中的15个自治区的27655名因海洛因依赖而接受门诊治疗的患者进行了横断面研究。为评估某些因素与静脉注射方式使用之间的关联，我们进行了粗略分析和逻辑分析。
该人群中静脉注射的流行率为64.4%，地区差异在33%至90%之间。粗略分析和逻辑分析表明，除地理因素外，还有两个因素与之有很强的关联：首次使用年份和首次使用年龄（首次使用时间越早，关联强度越大）。
这些发现对于西班牙控制艾滋病毒流行至关重要，该领域的进一步研究有助于指导政策制定。
