Background:

Risk stratification of patients with community-acquired pneumonia is a very important process for the comprehensive evaluation of the patient.

Objective:

To determine the usefulness of a tool that was created for the stratifica tion of patients with pneumonia in the prognostic assessment on admission. Materials and Methods: Descriptive research including 2,203 patients diagnosed with community pneumonia, divided in five series between 2009 and 2020; the mortality rate was calcu lated according to the stratification class and category. For the statistical analysis, we used the cross-product ratio (Odds Ratio) with its 95% confidence interval.

Results:

We observed a progressive increase in mortality from mild to severe class, both in the total number of cases (mild: 5%; moderate: 17%; severe: 59%) and in each one of the series. There was statistical significance in the mortality differences between severe and moderate pneumonia (OR 7[5.6;8.6]). In patients who had moderate and severe pneumonia on admission, the mortality in category B was higher than in cat egory A (moderate pneumonia: 18% vs. 11%, OR 1.7[1;2.7]; severe pneumonia: 68% vs. 29%, OR 5.2[3.4;8]).

Conclusions:

We have proven the usefulness of the tool in predicting the progression of patients with pneumonia and its importance in guiding the decision-making process. The behavior of the mortality rate in the different strata of the tool supports the purpose envisioned for it.

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