Method The study methods of this project included dynamic disease surveillance, multiple risk factors examinations, cross - sectional and prospective study, and modeling of predictive models, etc.
方法本专题采用的研究方法包括：疾病动态监测、危险因素动态监测、横断面研究、前瞻性观察、生态学比较和模型预测等流行病学方法。
Objective To investigate the dynamic changes of the coagulation function in children with infectious disease and its prognosis significance.
目的探讨儿童感染性疾病中，凝血功能变化对感染的诊断及转归的意义。
Objective to explore applicability of tri dimensional auto regression trend surface model in studying the space time dynamic of disease.
目的探讨三维自回归趋势面模型技术在疾病时空动态分析预测中的应用价值。
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