PT - JOURNAL ARTICLE AU - Luis Alberto Ruiz AU - Sonia Castro AU - Ainhoa Gómez AU - Amaia Sagarna AU - Estibaliz Pérez AU - Elena Urra AU - Amaia Urrutia AU - Ruth Diez AU - Rafael Zalacain TI - Community adquired <em>legionella pneumophila</em> pneumonia in elderly patients DP - 2014 Sep 01 TA - European Respiratory Journal PG - P2474 VI - 44 IP - Suppl 58 4099 - http://erj.ersjournals.com/content/44/Suppl_58/P2474.short 4100 - http://erj.ersjournals.com/content/44/Suppl_58/P2474.full SO - Eur Respir J2014 Sep 01; 44 AB - AIM: To evaluate differences in clinical presentation and outcome in elderly patients admitted to our hospital with CAP due to Legionella pneumophila.METHODS: We have included patients with CAP due to L. pneumophila admitted to our hospital between 01-01-2002 and 31-12-2013. Patients were divided in two groups: 1- Age&lt;65 years. 2- Age≥ 65 years (elderly patients). The following data were collected: epidemiological and comorbid conditions, clinical and examination findings, blood tests and chest radiological, and outcome. Microbiological diagnoses were made according to a positive test results for the L. pneumophila urinary antigen.RESULTS: We evaluated 208 patients (60 elderly). Compared to younger, elderly patients were more likely to be female (p=0,048), current smokers (p=0,0001) and heavy drinkers (p=0,0001). Comorbid conditions diabetes mellitus (p=0,025), congestive heart disease (p=0,002), COPD (p=0,028) and clinical symptoms like altered mental status (p=0,001) were more common in elderly. Laboratory abnormalities such as hyponatremia (p=0,0001) were more frequent in younger but leukocytes(p=0,015) and BUN levels (p=0,0001) were higher in elderly, who also had higher PSI (p=0,0001), CURB65 (p=0,0001) but no differences in ICU admission and mechanical ventilation. There were no differences in hospital stay (9,8 vs 10,6 days) and mortality rates (11,6% vs 5,4%, p= 0,08) between elderly and young.CONCLUSIONS: 1- Comorbidities and altered mental status were more common in elderly patients. 2-There were no differences in ICU admissions rate although elderly patients were in more severe clinical condition according to PSI and CURB. 3- Higher mortality in elderly patients but no significant differences.