Using Aalen's Linear Hazards Model to Investigate Time-varying Effects in the Proportional Hazards Regression Model
نویسندگان
چکیده
منابع مشابه
Using Aalen’s linear hazards model to investigate time-varying effects in the proportional hazards regression model
In this paper, we describe a new Stata command, stlh, which estimates and tests for the significance of the time-varying regression coefficients in Aalen’s linear hazards model; see Aalen (1989). We see two potential uses for this command. One may use it as an alternative to a proportional hazards or other nonlinear hazards regression model analysis to describe the effects of covariates on surv...
متن کاملTime-dependent covariates in the Cox proportional-hazards regression model.
The Cox proportional-hazards regression model has achieved widespread use in the analysis of time-to-event data with censoring and covariates. The covariates may change their values over time. This article discusses the use of such time-dependent covariates, which offer additional opportunities but must be used with caution. The interrelationships between the outcome and variable over time can ...
متن کاملBayesian proportional hazards model with time-varying regression coefficients: a penalized Poisson regression approach.
One can fruitfully approach survival problems without covariates in an actuarial way. In narrow time bins, the number of people at risk is counted together with the number of events. The relationship between time and probability of an event can then be estimated with a parametric or semi-parametric model. The number of events observed in each bin is described using a Poisson distribution with t...
متن کاملCondition Based Maintenance Using Proportional Hazards Model
Condition Based Maintenance Using Proportional Hazards Model
متن کاملSample-size formula for the proportional-hazards regression model.
A formula is derived for determining the number of observations necessary to test the equality of two survival distributions when concomitant information is incorporated. This formula should be useful in designing clinical trials with a heterogeneous patient population. Schoenfeld (1981, Biometrika 68, 316-319) derived the asymptotic power of a class of statistics used to test the equality of t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Stata Journal: Promoting communications on statistics and Stata
سال: 2002
ISSN: 1536-867X,1536-8734
DOI: 10.1177/1536867x0200200401