• S E Giannasi, M S Venuti, A D Midley, N Roux, C Kecskes, and E San Román.
• Hospital Italiano de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina.
• Med Intensiva. 2018 Nov 1; 42 (8): 482-489.

OutcomeTo determine mortality prognostic factors in elderly patients who are admitted to intensive care units (ICUs) due to acute critical illness.DesignA prospective cohort study was carried out.SettingA polyvalent Intensive Care Unit at a University Hospital in Argentina.Patients Or ParticipantsWe included 249 patients over 65years of age who were consecutively admitted to the ICU and required mechanical ventilation for more than 48hours, between January 2011 and December 2012. Patients with degenerative neurological disease, limitation of therapeutic effort or on chronic mechanical ventilation were excluded.Principal Variables Of InterestIn-hospital mortality, comorbidity (Charlson index), APACHEII score, and pre-acute illness status were recorded: nutritional status (subjective global assessment), functionality (activities of daily living [ADL] and Barthel index), cognitive abilities (Short Reporting Questionnaire on Cognitive Decline in the Elderly [S_IQCODE]) and quality of life (EQ-5D).ResultsThe in-hospital mortality rate was 52%. Logistic regression analysis, after adjusting for APACHEII score and age, identified the following independent variables associated to mortality: male gender (OR: 2.46, 95%CI: 1.37-4.42), moderate malnutrition (OR: 2.07, 95%CI: 1.09-3.94), severe malnutrition (OR: 2.20, 95%CI: 1.06-4.59), and ADL<6 (OR: 2.35, 95%CI: 1.16-4.75).ConclusionsIn our study, chronological age was not associated to in-hospital mortality. However, loss of functional independence (assessed by ADL) and malnourishment were shown to be strong prognostic factors; knowing these baseline characteristics from ICU admission would be useful when making decisions regarding the intensity of treatment.Copyright © 2017 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.

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