1. Seasonality, risk factors and burden of community-acquired pneumonia in COPD patients: a population database study using linked health care records
- Author
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Williams NP, Coombs NA, Johnson MJ, Josephs LK, Rigge LA, Staples KJ, Thomas M, and Wilkinson TMA
- Subjects
COPD ,community-acquired pneumonia ,seasonality ,risk-factors ,population-database studies ,Diseases of the respiratory system ,RC705-779 - Abstract
Nicholas P Williams,1,2 Ngaire A Coombs,3 Matthew J Johnson,4 Lynn K Josephs,3,4 Lucy A Rigge,2,4 Karl J Staples,2 Mike Thomas,1,3,4 Tom MA Wilkinson1,2,4 1Southampton NIHR Respiratory Biomedical Research Unit, Southampton General Hospital, 2Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, 3Primary Care and Population Sciences, Faculty of Medicine, Southampton General Hospital, 4NIHR CLAHRC Wessex, Faculty of Health Sciences, University of Southampton, Southampton General Hospital, Southampton, UK Background: Community-acquired pneumonia (CAP) is more common in patients with COPD than in the adult general population, with studies of hospitalized CAP patients consistently reporting COPD as a frequent comorbidity. However, despite an increasing recognition of its importance, large studies evaluating the incidence patterns over time, risk factors and burden of CAP in COPD are currently lacking.Methods: A retrospective observational study using a large UK-based database of linked primary and secondary care records was conducted. Patients with a diagnosis of COPD aged ≥40 years were followed up for 5 years from January 1, 2010. CAP and exacerbation episodes were identified from hospital discharge data and primary care coding records, and rates were calculated per month, adjusting for mortality, and displayed over time. In addition, baseline factors predicting future risk of CAP and hospital admission with CAP were identified.Results: A total of 14,513 COPD patients were identified: 13.4% (n=1,938) had ≥1 CAP episode, of whom 18.8% suffered from recurrent (≥2) CAP. Highest rates of both CAP and exacerbations were seen in winter. A greater proportion of frequent, compared to infrequent, exacerbators experienced recurrent CAP (5.1% versus 2.0%, respectively, P
- Published
- 2017