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Neurological and Psychiatric Comorbidities in Chronic Obstructive Pulmonary Disease

Authors Puteikis K, Mameniškienė R, Jurevičienė E

Received 12 November 2020

Accepted for publication 25 January 2021

Published 3 March 2021 Volume 2021:16 Pages 553—562


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Richard Russell

Kristijonas Puteikis,1 Rūta Mameniškienė,2 Elena Jurevičienė3

1Vilnius University, Faculty of Medicine, Vilnius, Lithuania; 2Vilnius University, Center for Neurology, Vilnius, Lithuania; 3Vilnius University, Center for Pulmonology and Allergology, Vilnius, Lithuania

Correspondence: Rūta Mameniškienė
Vilnius University, Center for Neurology, Vilnius, Lithuania
Tel +370 61153077
Email [email protected]

Background and Purpose: Chronic obstructive pulmonary disease (COPD) is often accompanied by different neurological and psychiatric comorbidities. The purpose of this study was to examine which of them are the most frequent and to explore whether their manifestation can be explained by underlying latent variables.
Methods: Data about patients with COPD and their neurological and psychiatric comorbidities were extracted from an electronic database of the National Health Insurance Fund of Lithuania for the period between January 1, 2012, and June 30, 2014. Exploratory factor analysis (EFA) was used to investigate comorbidity patterns.
Results: A study sample of 4834 patients with COPD was obtained from the database, 3338 (69.1%) of who were male. The most frequent neurological and psychiatric comorbidities were nerve, nerve root and plexus disorders (n=1439, 29.8%), sleep disorders (n=666, 13.8%), transient ischemic attack (n=545, 11.3%), depression (n=364, 7.5%) and ischemic stroke (n=349, 7.2%). The prevalence of ischemic stroke, transient ischemic attack, Parkinson’s disease, dementia and sleep disorders increased with age. One latent variable outlined during EFA grouped neurological disorders, namely ischemic stroke, transient ischemic attack, epilepsy, dementia and Parkinson’s disease. The second encompassed depression, anxiety, somatoform and sleep disorders. While similar patterns emerged in data from male patients, no clear comorbidity profiles among women with COPD were obtained.
Conclusion: Our study provides novel insights into the neurological and psychiatric comorbidities in COPD by outlining an association among cerebrovascular, neurodegenerative disorders and epilepsy, and psychiatric and sleep disorders. Future studies could substantiate the discrete pathological mechanism that underlie these comorbidity groups.

Keywords: chronic obstructive pulmonary disease, comorbidities, factor analysis, sleep impairment, stroke

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