多元多层分析模型在纵向研究资料中的应用研究

目的：探讨多元多层分析模型在具有多个因变量的纵向研究资料中的适用性。方法:应用多元多层模型分析多个自变量（年份、地区和医院级别）对两个因变量（医院仪器设备总值与业务收入）的影响以及两因变量间的关系。结果:多元多层模型显示，自变量中的年份与医院级别对两因变量（医院仪器设备总值与业务收入）的增长值有影响，而地区对其无影响；两因变量间存在正相关关系（r=0.962）。结论:多元多层模型可有效地分析具有多个因变量的纵向研究资料。

A multivariate and multilevel model in longitudinal data

Objective:To explore the applicability of a multivariate and multilevel model in longitudinal research with several dependent variables.Methods: Influences of independent variables(year,area and grade) on two dependent variables(the total value of instruments and equipment in hospitals and the operation income) and the relationship between the two dependent variables were assessed by a model.Results: Independent variables of year and hospital level,rather than area were associated with an increase of the two dependent variables.The two dependent variables positively correlated with each other.Conclusion: Multivariate and multilevel models can effectively analyze longitudinal data with several dependent variables.