A nested repeated measures model occurs in analysis of variance when a particular individual has the same number of subindividuals and each subindividual receives every pair of treatment levels.
当每一个体有相同的子个体，并且每一子个体的处理水平是成对的时候，我们使用套重复测量模型。
Objective: To explore the application of the mixed linear model in the repeated measures data of clinical trials.
前言：目的：探讨混合线性模型在临床试验重复测量资料分析中的应用。
CONCLUSION: multivariate random coefficients model can effectively analyze the dynamic change trend and random effects of multivariate repeated measures data in medical research.
结论：多变量随机系数模型可有效地进行多变量重复观测数据的动态变化趋势分析以及随机效应分析。
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