目的 用生存分析方法 ，找出导致糖尿病慢性并发症的危险因素。
Objective To investigate the prevalence rates of chronic diabetic complications and their risk factors.
目的：将生存分析方法应用于肺结核病治愈率的动态描述及其影响因素分析。
Objective: Survival analysis was applied to describe the cure rate of pulmonary tuberculosis dynamically and screening the related influential factors.
并且运用了生存分析方法对提前偿付行为进行描述，介绍了比例危险模型来对提前偿付率进行量化。
Secondly, it used survivable analysis to describe the prepayment behavior, and introduced proportional perilous model to quantify the prepayment rate.
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