IDEAS home Printed from https://ideas.repec.org/a/tsj/stataj/v11y2011i1p64-81.html
   My bibliography  Save this article

Pointwise confidence intervals for the covariate-adjusted survivor function in the Cox model

Author

Listed:
  • Matthew Cefalu

    (Texas A&M University)

Abstract

A graphical representation of the pointwise confidence intervals allows a researcher to easily assess the precision of estimators. In the absence of covariates, the official command sts graph can be used to plot these intervals for the survivor function or the cumulative hazard function; however, in the presence of covariates, sts graph is insufficient. The user-written command survci can be used to plot the pointwise intervals for the survivor function after the Cox model. In this article, I describe the current and new features of survci. The new features include pointwise confidence intervals for the cumulative hazard function and the support of stratified Cox models, as well as factor variables; available as of Stata 11. I describe the methods used in calculating pointwise confidence intervals in the Cox model for both the covariate-adjusted survivor function and the covariate-adjusted cumulative hazard function. I also demonstrate the syntax of survci using Stata’s example cancer dataset, cancer.dta. Copyright 2011 by StataCorp LP.

Suggested Citation

  • Matthew Cefalu, 2011. "Pointwise confidence intervals for the covariate-adjusted survivor function in the Cox model," Stata Journal, StataCorp LP, vol. 11(1), pages 64-81, March.
    • Handle: RePEc:tsj:stataj:v:11:y:2011:i:1:p:64-81
    Note: to access software from within Stata, net describe http://www.stata-journal.com/software/sj11-1/st0217/
    as

    Download full text from publisher

    File URL: http://www.stata-journal.com/article.html?article=st0217
    File Function: link to article purchase
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Vladan Ivanović & Vadim Kufenko & Boris Begović & Nenad Stanišić & Vincent Geloso, 2019. "Continuity Under a Different Name: The Outcome of Privatisation in Serbia," New Political Economy, Taylor & Francis Journals, vol. 24(2), pages 159-180, March.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:tsj:stataj:v:11:y:2011:i:1:p:64-81. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Christopher F. Baum or Lisa Gilmore (email available below). General contact details of provider: http://www.stata-journal.com/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.