Youtor
Extract data from a KaplanMeier plot
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=eHuQlIDRXxs
I describe how to extract (approximate) patient level data from a Kaplan-Meier plot using the algorithm of: • Guyot, P., Ades, A., Ouwens, M.J. et al. Enhanced secondary analysis of survival data: reconstructing the data from published Kaplan-Meier survival curves. BMC Med Res Methodol 12, 9 (2012). https://doi.org/10.1186/1471-2288-12-9 • (link to R code in paper) • and using WebPlotDigitizer: • Author: Ankit Rohatgi • Title: WebPlotDigitizer • Website: https://automeris.io/WebPlotDigitizer • Version: 4.2 • Date: April, 2019 • E-Mail: [email protected] • Location: San Francisco, California, USA • See also • https://healthdatacounts.com/2019/12/... • • The Kaplan-Meier plot I used as an example came from the supplementary material of: • Gandara, D.R., Paul, S.M., Kowanetz, M. et al. Blood-based tumor mutational burden as a predictor of clinical benefit in non-small-cell lung cancer patients treated with atezolizumab. Nat Med 24, 1441–1448 (2018). https://doi.org/10.1038/s41591-018-01... • I also mentioned the Stata version: • Wei, Y., Royston, P. (2017). Reconstructing Time-to-event Data from Published Kaplan–Meier Curves. The Stata Journal, 17(4), 786–802. https://doi.org/10.1177/1536867X18017...
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