Causal effects of treatments for informative missing data due to progression/death

Keunbaik Lee, Michael J. Daniels, Daniel J. Sargent

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In longitudinal clinical trials, when outcome variables at later time points are only defined for patients who survive to those times, the evaluation of the causal effect of treatment is complicated. In this paper, we describe an approach that can be used to obtain the causal effect of three treatment arms with ordinal outcomes in the presence of death using a principal stratification approach. We introduce a set of flexible assumptions to identify the causal effect and implement a sensitivity analysis for nonidentifiable assumptions which we parameterize parsimoniously. Methods are illustrated on quality of life data from a recent colorectal cancer clinical trial. This article has supplementary material online.

Original languageEnglish (US)
Pages (from-to)912-929
Number of pages18
JournalJournal of the American Statistical Association
Volume105
Issue number491
DOIs
StatePublished - Sep 2010

Fingerprint

Causal Effect
Missing Data
Progression
Clinical Trials
Principal Stratification
Colorectal Cancer
Parameterise
Quality of Life
Sensitivity Analysis
Evaluation
Missing data
Causal effect
Clinical trials

Keywords

  • Ordinal data
  • Principal stratification
  • QOL
  • Sensitivity analysis

ASJC Scopus subject areas

  • Statistics and Probability
  • Statistics, Probability and Uncertainty

Cite this

Causal effects of treatments for informative missing data due to progression/death. / Lee, Keunbaik; Daniels, Michael J.; Sargent, Daniel J.

In: Journal of the American Statistical Association, Vol. 105, No. 491, 09.2010, p. 912-929.

Research output: Contribution to journalArticle

Lee, Keunbaik ; Daniels, Michael J. ; Sargent, Daniel J. / Causal effects of treatments for informative missing data due to progression/death. In: Journal of the American Statistical Association. 2010 ; Vol. 105, No. 491. pp. 912-929.
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