Schoenfeld David
Harvard Medical School, Massachusetts General Hospital Biostatistics Center, Staniford Street, Boston, MA 02114, USA.
Crit Care. 2006 Feb;10(1):103. doi: 10.1186/cc3949.
The 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.
对重症监护病房接受治疗的患者进行死亡率研究时，首选的分析方法应是比较住院期间死亡患者的比例。寻找预后协变量的研究应使用逻辑回归。生存方法，如比例风险模型或基于竞争风险分析的方法并不适用，因为在住院期间死亡的患者延长生存时间对患者并无益处，因此在统计分析中不应进行衡量。
