time-dependent covariates

基本解释

It is so called "time-dependent covariates" that the values of covariates change over time.
共变数的值会随著时间而改变时，我们称之为时间相依之共变数。
Recently, additive hazards(AH)models are extensively applied to analyze survival data, in which covariates are assumed to be time-independent or time-dependent.
最近以来，可加危险（AH）模型被广泛地应用于生存分析数据，模型的协变量可以假设为时间独立或时间相关。
Most recently, additive hazards(AH) models are extensively applied to analyze survival data, in which covariates are assumed to be time-independent or time-dependent.
最近可加危险（AH）模型被广泛地应用于生存分析数据，模型的协变量可以假设为时间独立或时间相关的。