Simultaneous Con®dence Intervals for the Difference of Two Survival Functions

نویسندگان

  • M. I. PARZEN
  • L. J. WEI
چکیده

In comparing two treatments with failure time observations, con®dence bands for the `̀ difference'' of two survival curves provide useful information about a global picture of the treatment difference over time. In this note, we propose a rather simple procedure for constructing such simultaneous con®dence intervals. Our technique can also be used in the one-sample case, which has been extensively studied in the literature.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Simultaneous Con dence Intervals for Linear Estimates of Linear Functionals

This note presents three ways of constructing simultaneous condence intervals for linear estimates of linear functionals in inverse problems, including \Backus-Gilbert" estimates. Simultaneous con dence intervals are needed to compare estimates, for example, to nd spatial variations in a distributed parameter. The notion of simultaneous con dence intervals is introduced using coin tossing as an...

متن کامل

Likelihood Ratio Based Con dence Intervals in Survival Analysis

Con dence intervals for the survival function and the cumulative hazard function are considered. These con dence intervals are based on an inversion of the likelihood ratio statistic. To do this two extensions of the likelihood, each of which yields meaningful likelihood ratio hypothesis tests and subsequent con dence intervals, are considered. The choice of the best extension is di cult. In th...

متن کامل

Sche e’s method for constructing simultaneous con!dence intervals subject to cone constraints

We discuss in this paper Sche e’s method for constructing simultaneous con!dence intervals which hold for all linear combinations of the parameters subject to the weight vector being restricted to a convex cone. c © 2003 Elsevier B.V. All rights reserved.

متن کامل

Statistical Inference for Computable General Equilibrium Models, with Application to a Model of the Moroccan Economy

We study the problem of measuring the uncertainty of computable general equilibrium (CGE) (or RBC)-type model simulations associated with parameter uncertainty. We describe two approaches for building conŽ dence sets on model endogenous variables. The Ž rst uses a standard Wald-type statistic. The second approach assumes that a conŽ dence set (sampling or Baycsian) is available for the free par...

متن کامل

Con dence Regions For The Equality Of Two Survival Curves

Often when comparing the survival rates of individuals given either of two treatments the analysis stops with a test of the hypothesis of no treatment di erence and perhaps a plot of the two survival functions. The hypothesis test is usually a comparison of the two survival curves over the entire observational period. An alternative approach to this problem is to provide an investigator with a ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998