Respiratory viral infections in adults with and without chronic obstructive pulmonary disease

doi:10.1164/ajrccm.162.1.9911019

. 2000 Jul;162(1):167-73.

doi: 10.1164/ajrccm.162.1.9911019.

Respiratory viral infections in adults with and without chronic obstructive pulmonary disease

S B Greenberg¹, M Allen, J Wilson, R L Atmar

Affiliations

PMID: 10903237
DOI: 10.1164/ajrccm.162.1.9911019

Respiratory viral infections in adults with and without chronic obstructive pulmonary disease

S B Greenberg et al. Am J Respir Crit Care Med. 2000 Jul.

. 2000 Jul;162(1):167-73.

doi: 10.1164/ajrccm.162.1.9911019.

Authors

S B Greenberg¹, M Allen, J Wilson, R L Atmar

Affiliation

¹ Departments of Medicine and Microbiology and Immunology, Baylor College of Medicine, Houston, Texas 77030, USA. stepheng@bcm.tmc.edu

PMID: 10903237
DOI: 10.1164/ajrccm.162.1.9911019

Abstract

A longitudinal cohort study of older adults with chronic obstructive pulmonary disease (COPD) who were stratified by FEV(1) at enrollment was done to define the etiology, frequency, severity, and medical-care impact of respiratory tract viral infections (RTVIs). Controls consisted of a group of subjects of comparable age with the patients. RTVIs were documented in 44% of observed acute respiratory illnesses in control subjects and in 27% of COPD subjects, who were followed for mean periods of 35 and 26 mo, respectively. In this heavily influenza-vaccinated cohort ( approximately 90% vaccinated each year), picornaviruses, parainfluenza viruses, and coronaviruses were most commonly identified. Mean time to return to clinical baseline was approximately 2 wk in each group. Control and COPD subjects with mild airways obstruction (baseline FEV(1) >/= 50% predicted) had few emergency-center visits or hospitalizations. Approximately half of COPD subjects with moderate/severe COPD (baseline FEV(1) < 50% predicted) had at least one emergency-center visit and/or hospitalization for acute respiratory illness. RTVIs were documented in 23% of hospitalizations and in 45% of patients admitted between December and March. RTVIs have a major impact on utilization of health care resources for COPD patients with moderate/severe airways obstruction.

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