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Invitation to complete quick survey to improve Kaplan-Meier plots (KMunicate) 

We would like to invite you to take part in this quick survey led by the MRC Clinical Trials Unit at UCL to improve Kaplan-Meyer plots:

The standard way to present time-to-event data, such as survival, is with Kaplan-Meier plots. These are formatted by journals and reported in a number of ways, but we find they commonly lack some key information.

The key problems are:

  1. Expressing how many people are contributing data at any point in the graph, including the  pattern of censoring
  2. Expressing that the uncertainty of the estimate increases over time

We have some initial suggestions on how to improve Kaplan-Meier plots, but we need your help to know which would be the most useful and most acceptable to a wide audience.

Invitation to a short survey
Could you take our short survey of 9 meaningful multiple choice questions? 

You’ll be asked to compare standard and alternative graphs, using data from one of three RCTS, chosen at random when you follow this link: 

Please complete the survey in one attempt as we cannot guarantee you will return to the same trial. 

The survey will be open until early in Jun-2017. 

Survey results
The findings will be written up for publication in a peer-reviewed journal and also introduced in an active poster session at the joint SCT & ICTMC 2017 conference in Liverpool. 

We are interested to hear from anyone who looks at survival curves and are casting our net as wide as possible. Please forgive us if you have already received an invitation through another means. 

If you have colleagues you think would be interested (including clinicians, journal editors, operations specialists, systematic reviewers, regulators, statisticians and trialists), please feel free to forward our invitation and link. 

Thank you for your time. The Project team:

Tim Morris              MRC Clinical Trials Unit at UCL
Chris Jarvis             London School of Hygiene and Tropical Medicine
Will Cragg               MRC Clinical Trials Unit at UCL
Babak Oskooei        MRC Clinical Trials Unit at UCL
Patrick Philips         MRC Clinical Trials Unit at UCL
Matt Sydes             MRC Clinical Trials Unit at UCL 

MRC Clinical Trials Unit at UCL - Institute of Clinical Trials & Methodology



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  • piotrowiczkarol IsabellaJones1957 7 Jul 2017

    What a great survey, I love the questions!

  • dkrosik HelenThomas1982 15 Jul 2017

    This is really interesting.

  • 7zuzakopec9 Sophia Brown 17 Aug 2017

    Really great questions.

  • malybartek8739 Basra 6 Sep 2017

    Done it already!

  • zielenskaanka Ethan Jackson 6 Oct 2017

    Done it as well, but the results are really surprising. I love it so much!

  • ginajdavies JEtheridge83 28 Dec 2017

    I will definitely try it, why not?