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医药卫生方针政策与法律法规研究
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鞅残差
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  martingale residual
     APPLICATION OF MARTINGALE RESIDUAL IN COX MODEL DIAGNOSTIC-DETERMINING THE FUNCTIONAL FORM FOR THE GIVEN COVARIATE.
     鞅残差在Cox回归模型诊断中的应用
短句来源
     Rusults:Two examples showed that a loess smoothed fit of the martingale residual plot could be used to determine the functional form for a covariate in the Cox model.
     结果 :实例分析表明 ,L oess平滑鞅残差图可用于 Cox模型中协变量函数形式的确定。
短句来源
     Conclusion:We suggest that analysts bring the martingale residual plot into Cox model analysis to get correct estimates of the effect on survival for a given covariate.
     结论 :建议分析者把鞅残差图纳入 Cox模型分析中 ,对协变量的生存效应作出正确估计。
短句来源
  “鞅残差”译为未确定词的双语例句
     2. The graphical methods investigating the assumption of linear relationship between covariates and log hazard ratio are compared. These plots can also provide best function form for a given continuous covariate to explore its effecton survival in Cox model.
     2.针对Cox模型基本假定之二——对数线性假定,通过实例比较了现有四种Cox模型协变量与对数风险线性关系假定的图法检查(鞅残差图、改进的鞅残差图、构造变量图及多重β法),这些方法同时提供协变量对生存影响的最佳函数形式。
短句来源
     Methods:Plotting martingale residuals of a Cox model not including this covariate against the value of the given covariate can illustrate the functional form for the covariate in the complete model.
     方法 :不含该变量的 Cox模型下的鞅残差对该协变量作图可揭示该变量在全模型中的函数形式。
短句来源
  相似匹配句对
     APPLICATION OF MARTINGALE RESIDUAL IN COX MODEL DIAGNOSTIC-DETERMINING THE FUNCTIONAL FORM FOR THE GIVEN COVARIATE.
     残差在Cox回归模型诊断中的应用
短句来源
     \$ estimation.
     估计的残差
短句来源
     Quasi-Eventual Martingales
     拟终
短句来源
     Hardy Martingale Space
     Hardy 空间
短句来源
     F[K_t]-Residual Graphs
     F[K_t]残差
短句来源
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  martingale residual
We propose to perform model check for the Cox and Aalen regression models using martingale residual processes grouped after the risk score.
      
Asymptotic distributions of the grouped martingale residual processes are deduced, so both formal and graphical model check can be performed.
      
In addition, the overall magnitude of the martingale residual processes is considerably smaller when inference is conducted fully Bayesian.
      
Martingale residual plots indicated that the proportionality assumption was valid.
      
Martingale residual plots were used to assess the appropriate functional form of the predictors as well as the goodness to fit.
      
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Objective:To discuss the best functional form for a given continuous covariate to explain its effect on survival in Cox model.Methods:Plotting martingale residuals of a Cox model not including this covariate against the value of the given covariate can illustrate the functional form for the covariate in the complete model.Rusults:Two examples showed that a loess smoothed fit of the martingale residual plot could be used to determine the functional form for a covariate in the Cox model.Conclusion:We suggest that...

Objective:To discuss the best functional form for a given continuous covariate to explain its effect on survival in Cox model.Methods:Plotting martingale residuals of a Cox model not including this covariate against the value of the given covariate can illustrate the functional form for the covariate in the complete model.Rusults:Two examples showed that a loess smoothed fit of the martingale residual plot could be used to determine the functional form for a covariate in the Cox model.Conclusion:We suggest that analysts bring the martingale residual plot into Cox model analysis to get correct estimates of the effect on survival for a given covariate.

目的 :探讨 Cox模型中某给定连续变量对生存效应的最佳函数形式。方法 :不含该变量的 Cox模型下的鞅残差对该协变量作图可揭示该变量在全模型中的函数形式。结果 :实例分析表明 ,L oess平滑鞅残差图可用于 Cox模型中协变量函数形式的确定。结论 :建议分析者把鞅残差图纳入 Cox模型分析中 ,对协变量的生存效应作出正确估计。

 
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