Objectives: To evaluate the clinical features, etiology, and outcome of patients over 65 years old hospitalized for community-acquired pneumonia (CAP).
Methods: A retrospective cohort analysis was performed for adult patients hospitalized with CAP in a 1000-bed teaching hospital between Jan 2002 and Jan 2006. Differences between < or = 65 yrs and > 65 yrs groups were calculated using chi(2) test.
Results: A total of 302 patients (166 males), with a mean age of (68 +/- 21) yrs, were enrolled. Of the 216 elderly patients, 67.1% had comorbid conditions, mostly cardiovascular diseases and chronic obstructive lung disease. For the risk stratification, 175 patients were classified as IV - V according to Fine's index. The mean hospital stay was 12 days and in-hospital mortality was 12.0%. The most frequent pathogen was Streptococcus pneumoniae in elderly patients. As compared to 86 younger patients (< or = 65yrs), altered mental status, dyspnea, tachypnea and tachycardia on hospital admission were more frequent in the elderly. The etiological distribution was also different between the two groups.
Conclusions: CAP in elderly patients is a prevalent disease with high incidence of complications and mortality. More attention should be paid to the specific clinical manifestations of this patient population.
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