Analyzing Factors Affecting Emergency Department Length of Stay—Using a Competing Risk-accelerated Failure Time Model

Analyzing Factors Affecting Emergency Department Length of Stay—Using a Competing Risk-accelerated Failure Time Model

Emergency department (ED) length of stay (LOS) is associated with ED crowding and related complications. Previous studies either analyzed single patient disposition groups or combined different endpoints as a whole. The aim of this study is to evaluate different effects of relevant factors affecting ED LOS among different patient disposition groups.This is a retrospective electronic data analys...

Predicting Length of Stay among Patients Discharged from the Emergency Department—Using an Accelerated Failure Time Model

BACKGROUND Emergency department (ED) crowding continues to be an important health care issue in modern countries. Among the many crucial quality indicators for monitoring the throughput process, a patient's length of stay (LOS) is considered the most important one since it is both the cause and the result of ED crowding. The aim of this study is to identify and quantify the influence of differe...

Identification in Accelerated Failure Time Competing Risks

We provide new conditions for identification in accelerated failure time competing risks models. In our model, we specify unknown regression functions and the joint survivor function of latent disturbance terms nonparametrically. We show that the model can be identified with covariates that are independent of latent errors, provided that certain rank conditions are satisfied. We present a simpl...

Universal Factors Affecting Emergency Department Crowding

I read with great interest the article entitled “Application of Queuing Analytic Theory to Decrease Waiting Times in Emergency Department: Does it Make Sense?” in the autumn issue of Archives of Trauma Research (1). As an emergency physician in the United States, I can share the frustration of the authors that throughput of patients in the emergency department can often be hindered by numerous ...

universal factors affecting emergency department crowding