Mortality and hospital stay, adjusted for severity, as indicators of the effectiveness and efficiency of the care of critical patients

Montserrat Rué Monné, Marta Roqué Fíguls, Jaume Mestre Saura, Antoni Artigas Raventós, Xavier Bonfill Cosp

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Abstract

BACKGROUND: Hospital mortality and length of stay, both adjusted for severity of illness, have been used as indicators of effectiveness and efficiency of health care in critical patients. PATIENTS AND METHODS: 1,270 adult critical patients, consecutively admitted in 17 intensive care units (ICU) from Catalonia and the Balearic Islands, Spain, have been included. For each hospital, effectiveness has been assessed with a quality performance index (QOI) obtained by dividing the number of observed deaths by the number of deaths expected according to the MPM system (MPM II D). Efficiency has been assessed with a resource utilization index (RUI) obtained by dividing the number of observed weighted hospital days (WHD) by the number of expected WHD. WHD is a measure of resource use which weights ICU days more heavily than non-ICU days. Expected WHD have been obtained by a regression model including severity of illness and the presence/absence of surgery. RESULTS: Ten of the 17 hospitals lie within one standard deviation of the mean on both clinical and economical indices. There are 3 hospitals with optimal values on both indices. There is no evidence of association between effectiveness and resource utilization. CONCLUSIONS: Clinical and economical performance of hospitals can be quantified with simple indicators which allow to compare centers. Hospitals can be effective and efficient at the same time.
Original languageEnglish
Pages (from-to)647-651
JournalMedicina Clinica
Volume108
Issue number17
Publication statusPublished - 3 May 1997

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