Immortal time bias in critical care research: application of time-varying Cox regression for observational cohort studies.

Shintani AK, Girard TD, Eden SK, Arbogast PG, Moons KG, Ely EW
Crit Care Med. 2009 37 (11): 2939-45

PMID: 19770737 · PMCID: PMC3365557 · DOI:10.1097/CCM.0b013e3181b7fbbb

MeSH Terms (16)

Bias Biomedical Research Computer Simulation Critical Care Critical Illness Delirium Humans Intensive Care Units Kaplan-Meier Estimate Length of Stay Models, Statistical Monte Carlo Method Proportional Hazards Models Prospective Studies Research Design Respiration, Artificial

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