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IPDFC: Stata module to reconstruct individual participant data from a published Kaplan-Meier curve

Author

Listed:
  • Yinghui Wei

    (Plymouth University)

  • Patrick Royston

    (University College London)

Programming Language

Stata

Abstract

ipdfc reconstructs patient-level survival (time-to-event) data from a Kaplan-Meier curve. For example, Kaplan-Meier estimates may have been obtained by digitizing a published graphical image. The risk table, that is the numbers of patients at risk at particular time points, if available, may be used to improve the accuracy of the reconstructed data. If the risk table is not available, the total number of participants in the sample at time origin should be specified (see description below for trisk and nrisk). The total number of events, if known, may also be used to improve the reconstruction.

Suggested Citation

  • Yinghui Wei & Patrick Royston, 2020. "IPDFC: Stata module to reconstruct individual participant data from a published Kaplan-Meier curve," Statistical Software Components S458867, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s458867
    Note: This module should be installed from within Stata by typing "ssc install ipdfc". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/i/ipdfc.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/i/ipdfc.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/i/ipdfc_example1.do
    File Function: sample do-file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/h/Head_and_neck_arm1_no_risk_table.txt
    File Function: sample data
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/h/Head_and_neck_arm1.txt
    File Function: sample data
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/h/Head_and_neck_arm0_no_risk_table.txt
    File Function: sample data
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/h/Head_and_neck_arm0.txt
    File Function: sample data
    Download Restriction: no
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