Reconstructing time-to-event data from published Kaplan–Meier curves
Yinghui Wei
Centre for Mathematical Sciences
School of Computing, Electronics, and Mathematics
Plymouth University
Plymouth, UK
[email protected]
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Patrick Royston
MRC Clinical Trials Unit
University College London
London, UK
[email protected]
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Abstract. Hazard ratios can be approximated by data extracted from published
Kaplan–Meier curves. Recently, this curve approach has been extended
beyond hazard-ratio approximation with the capability of constructing
time-to-event data at the individual level. In this article, we introduce a
command, ipdfc, to implement the reconstruction method to convert
Kaplan–Meier curves to time-to-event data. We give examples to illustrate
how to use the command.
View all articles by these authors:
Yinghui Wei, Patrick Royston
View all articles with these keywords:
ipdfc, time-to-event data, Kaplan–Meier curves, hazard ratios
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