目的在四川省西昌市静脉吸毒人群中,利用数学模型研究人类免疫缺陷病毒(HIV)发病率。方法利用对西昌市静脉吸毒人群HIV感染横断面调查获得有关数据,进行HIV数学模型分析。结果建立静脉吸毒人群中的HIV数学模型,利用横断面调查资料计算HIV发病率。结论由模型及其分析得出HIV发病率为λ=3.5%。与由队列研究所获得的发病率比较接近。
Objective The HIV incidence rate was studied among the injection drug users in Xiehang of Sichuan province with a mathematical model. Methods The basic data were obtained by cross - sectional studies among the injection drug users. A HIV mathematical model was analyzed. Results The HIV mathematical model was introduced. The HIV incidence rate was estimated. Conclusion By the model, the HIV incidence rate is λ = 3.5 %, which is close that by the cohort study.