• Scand J Trauma Resus · Nov 2017

    Comment Letter

    Letter to the Editor regarding the article: "identifying pre-hospital factors associated with outcome for major trauma patients in a regional trauma network: an exploratory study".

    • Charlie A Sewalt, Eveline J A Wiegers, Esmee Venema, and Hester F Lingsma.
    • Center for Medical Decision Making, Department of Public Health, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands. c.sewalt@erasmusmc.nl.
    • Scand J Trauma Resus. 2017 Nov 25; 25 (1): 113.

    AbstractThe aim of this Letter to the Editor was to report some methodological shortcomings in a recently published article. Issues regarding missing values and overfitting are mentioned. First, Complete Case (CC) analysis was used instead of an imputation method. Second, there was a high chance of overfitting and lack of model validation. In conclusion, the results of this study should be interpret with caution and further research is necessary.

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