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Cough in the Elderly During the COVID-19 Pandemic
Johanna Tuulikki Kaulamo1,2, Anne Marika Lätti3, Heikki Olavi Koskela3,4
1Faculty of Health Sciences, Institute of Clinical Sciences, School of Medicine, University of Eastern Finland, Yliopistonranta 1, 70210, Kuopio, Finland. kaulamo@uef.fi.
Introduction:
The prevalence of chronic cough increases with age. However, data on the prevalence and background disorders of cough subtypes in the elderly are scarce. The objective of this study was to identify the point prevalence and risk factors of acute, subacute, and chronic cough in an elderly community-based population.
Methods:
This was a cross-sectional email survey amongst 26,205 members of the Finnish Pensioners' Federation during the COVID-19 pandemic in spring 2021.
Results:
The response rate was 23.6% (6189). 5983 subjects aged at least 64 years were included in the analyses (mean 72.6 years, 66.3% female). The point prevalence of daily acute, subacute, and chronic cough were 1.4%, 0.7%, and 9.6%, respectively. Only 0.4% of the subjects had a COVID-19 infection. In the multivariate analyses, chronic rhinosinusitis, and obstructive sleep apnoea were common risk factors for all cough subtypes. Chronic cough had several risk factors; Bronchiectasis (OR 5.79 (CI95% 2.70-12.41)), current asthma (2.67 (2.02-3.54)), chronic rhinosinusitis (2.51 (1.94-3.24)), somatic symptom score (1.13 per symptom (1.07-1.19)), family history of chronic cough (1.88 (1.54-2.30)), gastro-oesophageal reflux disease (1.86 (1.50-2.32)), advanced age (1.20 per decade (1.02-1.40)), chronic obstructive pulmonary disease (1.74 (0.99-3.05)), dog ownership (1.42 (1.07-1.89)), and obstructive sleep apnoea (1.41 (1.16-1.73)).
Conclusion:
Acute and subacute cough, as well as previous COVID-19 infection, were uncommon in this Finnish elderly population. The prevalence of chronic cough was higher than that previously found in younger adults. Chronic cough is a multifactorial disorder in the elderly.
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