Models incorporating time-varying covariates enhanced predictive power by reducing misclassification and incorporating day-to-day changes in extra-renal organ system failure and the provision of dialysis during the course of ARF.

• 通过减少错误分类，加入肾外器官衰竭逐日变化和ARF期间透析的提供，这些时间变化因素的加入增加了模型预测力。