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SWPERMUTE: Stata module to compute Permutation tests for Stepped-Wedge Cluster-Randomised Trials

Author

Listed:
  • Jennifer Thompson

    () (London School of Hygiene and Tropical Medicine)

Abstract

Permutation tests are useful in stepped-wedge trials to provide robust statistical tests of intervention-effect estimates. However, the Stata command permute does not produce valid tests in this setting because individual observations are not exchangeable. We introduce the swpermute command that permutes clusters to sequences to maintain exchangeability. The command provides additional functionality to aid users in performing analyses of stepped-wedge trials. In particular, we include the option “withinperiod" that performs the specified analysis separately in each period of the study and the resulting period-specific intervention-effect estimates are combined as a weighted average.

Suggested Citation

  • Jennifer Thompson, 2017. "SWPERMUTE: Stata module to compute Permutation tests for Stepped-Wedge Cluster-Randomised Trials," Statistical Software Components S458426, Boston College Department of Economics, revised 29 Jun 2019.
  • Handle: RePEc:boc:bocode:s458426
    Note: This module should be installed from within Stata by typing "ssc install swpermute". Windows users should not attempt to download these files with a web browser.
    as

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    File URL: http://fmwww.bc.edu/repec/bocode/s/swpermute.ado
    File Function: program code
    Download Restriction: no

    File URL: http://fmwww.bc.edu/repec/bocode/s/swpermute.dlg
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/s/swpermute.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/t/tbconfirmed.dta
    File Function: sample data file
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