Introduction:

We investigated the basal functional status prior to admission of patients to the Intensive Care Unit and its association with mortality during their stay in the Intensive Care Unit and hospital mortality, and its relationship with 3 scores (SOFA, MMP-3 and SAPS III).

Material and methods:

Retrospective and descriptive study of patients registered prospectively in the database of the Intensive Care Unit during the period from 2009 to 2015. Basal functional status was evaluated according to a scale based and modified about ECOG. We conduct a univariate analysis dividing living and dead later compare groups according to their basal functional status through an analysis of variance to finally conduct a multiple logistic regression analysis to identify variables independently associated with higher hospital mortality.

Results:

2,028 patients were included. Univariate analysis showed that the degree of deterioration of the basal functional status before admission is associated with hospital mortality and the mortality scores (p ≤ 0.05) in the comparison between living and dead as in the comparison between degrees of impairment functional state, a further deterioration increased mortality. The multiple logistic regression analysis did not identify the basal functional status as a variable independently associated with mortality; the following variables: age, cardiac arrest provides no overall SOFA, neurological SOFA, SAPS III and MMP-3 are independently associated with increased hospital mortality; while the place of origin, the days of Intensive Care Unit and hospital stay were associated with lower hospital mortality.

Conclusion:

The basal functional status not independently associated with hospital mortality unlike scores of mortality, suggesting that it is not the basal functional status which is associated with mortality but rather the severity of the patient upon admission and during hospitalization.

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