Conclusion: There were many death related risks in pts with HAP such as at least two chronic diseases, chronic pulmonary diseases, cirrhotic diseases, time for machine ventilation over 12 days, using previous antibiotic therapy, using inappropriate initial antibiotic therapy, Glassgow score ≤ 7, APACHE II score ³ 20, sock, serious renal failure, lesions in two lung sides on chest X-rays, and Acinetobacter spp infection.