• Crit Care · Feb 2006

    Comment

    Survival methods, including those using competing risk analysis, are not appropriate for intensive care unit outcome studies.

    • David Schoenfeld.
    • Harvard Medical School, Massachusetts General Hospital Biostatistics Center, Staniford Street, Boston, MA 02114, USA. dschoenfeld@partners.org
    • Crit Care. 2006 Feb 1; 10 (1): 103103.

    AbstractThe preferred analysis for studies of mortality among patients treated in an intensive care unit should compare the proportions of patients who died during hospitalization. Studies that look for prognostic covariates should use logistic regression. Survival methods, such as the proportional hazards model, or methods based on competing risk analysis are not appropriate because prolonged survival among patients that die during their hospitalization does not benefit the patient and, therefore, should not be measured in the statistical analysis.

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