Why the study?
Do specialized subgroup mortality probability models improve the assessment of intensive care unit performance compared to the general MPM0-III model in ICU patients?
Do specialized subgroup mortality probability models improve the assessment of intensive care unit performance compared to the general MPM0-III model in ICU patients?
Specialized subgroup mortality models do not substantially improve ICU performance assessment over the general MPM0-III model unless the patient mix varies significantly from the MPM0-III derivation cohort.
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Subgroup models add little to MPM0-III for ICU SMR assessment; leaves open benefit only in markedly atypical case mixes.
Nathanson et al. (2009) studied this question.
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