The burden of community-acquired pneumonia in seniors: results of a population-based study.

Content Provider	Semantic Scholar
Author	Neuzil, Kathleen M. Shay, David K. Yu, Onchee
Copyright Year	2004
Abstract	BACKGROUND Pneumonia is recognized as a leading cause of morbidity in seniors. However, the overall burden of this disease--and, in particular, the contribution of ambulatory cases to that burden--is not well defined. To estimate rates of community-acquired pneumonia and to identify risk factors for this disease, we conducted a large, population-based cohort study of persons aged >or=65 years that included both hospitalizations and outpatient visits for pneumonia. METHODS The study population consisted of 46,237 seniors enrolled at Group Health Cooperative who were observed over a 3-year period. Pneumonia episodes presumptively identified by International Classification of Diseases, Ninth Revision, Clinical Modification codes assigned to medical encounters were validated by medical record review. Characteristics of participants were defined by administrative data sources. RESULTS The overall rate of community-acquired pneumonia ranged from 18.2 cases per 1000 person-years among persons aged 65-69 years to 52.3 cases per 1000 person-years among those aged >or=85 years. In this population, 59.3% of all pneumonia episodes were treated on an outpatient basis. In multivariate analysis, risk factors for community-acquired pneumonia included age, male sex, chronic obstructive pulmonary disease, asthma, diabetes mellitus, congestive heart failure, and smoking. CONCLUSIONS On the basis of these data, we estimate that roughly 915,900 cases of community-acquired pneumonia occur annually among seniors in the United States and that approximately 1 of every 20 persons aged >or=85 years will have a new episode of community-acquired pneumonia each year.
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PubMed reference number	15578365v1
Volume Number	39
Issue Number	11
Journal	Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
Language	English
Access Restriction	Open
Subject Keyword	Chronic Obstructive Airway Disease Community-Acquired Infections Diabetes Mellitus Heart failure Hospitalization Lung Diseases, Obstructive Lung diseases Medical Records Morbidity - disease rate One Thousand PersonNameUse - assigned Seniors' Health Sixty Nine Smoke community acquired pneumonia
Content Type	Text
Resource Type	Article