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Titel: The association of cognitive functioning as measured by the DemTect with functional and clinical characteristics of COPD : results from the COSYCONET cohort
VerfasserIn: von Siemens, Sarah Marietta
Perneczky, Robert
Vogelmeier, Claus F.
Behr, Jürgen
Kauffmann-Guerrero, Diego
Alter, Peter
Trudzinski, Franziska C.
Bals, Robert
Grohé, Christian
Söhler, Sandra
Waschki, Benjamin
Lutter, Johanna I.
Welte, Tobias
Jörres, Rudolf A.
Kahnert, Kathrin
Sprache: Englisch
Titel: Respiratory Research
Bandnummer: 20
Heft: 1
Verlag/Plattform: BMC
Erscheinungsjahr: 2019
Freie Schlagwörter: COPD
Dementia
Cognitive impairment
DDC-Sachgruppe: 610 Medizin, Gesundheit
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Alterations of cognitive functions have been described in COPD. Our study aimed to disentangle the relationship between the degree of cognitive function and COPD characteristics including quality of life (QoL). Data from 1969 COPD patients of the COSYCONET cohort (GOLD grades 1–4; 1216 male/ 753 female; mean (SD) age 64.9 ± 8.4 years) were analysed using regression and path analysis. The DemTect screening tool was used to measure cognitive function, and the St. George‘s respiratory questionnaire (SGRQ) to assess disease-specific QoL. DemTect scores were < 9 points in 1.6% of patients and < 13 points in 12% when using the original evaluation algorithm distinguishing between < 60 or > =60 years of age. For statistical reasons, we used the average of both algorithms independent of age in all subsequent analyses. The DemTect scores were associated with oxygen content, 6-min-walking distance (6-MWD), C-reactive protein (CRP), modified Medical Research Council dyspnoea scale (mMRC) and the SGRQ impact score. Conversely, the SGRQ impact score was independently associated with 6-MWD, FVC, mMRC and DemTect. These results were combined into a path analysis model to account for direct and indirect effects. The DemTect score had a small, but independent impact on QoL, irrespective of the inclusion of COPD-specific influencing factors or a diagnosis of cognitive impairment. We conclude that in patients with stable COPD lower oxygen content of blood as a measure of peripheral oxygen supply, lower exercise capacity in terms of 6-MWD, and higher CRP levels were associated with reduced cognitive capacity. Furthermore, a reduction in cognitive capacity was associated with reduced disease-specific quality of life. As a potential clinical implication of this work, we suggest to screen especially patients with low oxygen content and low 6-MWD for cognitive impairment.
DOI der Erstveröffentlichung: 10.1186/s12931-019-1217-5
URL der Erstveröffentlichung: https://respiratory-research.biomedcentral.com/articles/10.1186/s12931-019-1217-5
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-367996
hdl:20.500.11880/33434
http://dx.doi.org/10.22028/D291-36799
ISSN: 1465-993X
Datum des Eintrags: 13-Jul-2022
Fakultät: M - Medizinische Fakultät
Fachrichtung: M - Innere Medizin
Professur: M - Prof. Dr. Robert Bals
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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