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What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study

BACKGROUND: There is an ongoing debate about the appropriate spirometric criterion for airway obstruction to detect COPD. Furthermore, the association of different criteria with comorbidity prevalence and inflammatory biomarkers in advanced age is unclear. MATERIALS AND METHODS: Spirometry was perfo...

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Autores principales: Karrasch, Stefan, Brüske, Irene, Smith, Maia P, Thorand, Barbara, Huth, Cornelia, Ladwig, Karl-Heinz, Kronenberg, Florian, Heinrich, Joachim, Holle, Rolf, Peters, Annette, Schulz, Holger
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4993254/
https://www.ncbi.nlm.nih.gov/pubmed/27574413
http://dx.doi.org/10.2147/COPD.S104529
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author Karrasch, Stefan
Brüske, Irene
Smith, Maia P
Thorand, Barbara
Huth, Cornelia
Ladwig, Karl-Heinz
Kronenberg, Florian
Heinrich, Joachim
Holle, Rolf
Peters, Annette
Schulz, Holger
author_facet Karrasch, Stefan
Brüske, Irene
Smith, Maia P
Thorand, Barbara
Huth, Cornelia
Ladwig, Karl-Heinz
Kronenberg, Florian
Heinrich, Joachim
Holle, Rolf
Peters, Annette
Schulz, Holger
author_sort Karrasch, Stefan
collection PubMed
description BACKGROUND: There is an ongoing debate about the appropriate spirometric criterion for airway obstruction to detect COPD. Furthermore, the association of different criteria with comorbidity prevalence and inflammatory biomarkers in advanced age is unclear. MATERIALS AND METHODS: Spirometry was performed in a population-based study (n=2,256) covering an age range of 41–90 years. COPD was spirometrically determined either by a fixed ratio (FR) of <0.7 for forced expiratory volume in 1 second (FEV(1))/forced vital capacity (FVC) or by FEV(1)/FVC below the lower limit of normal (LLN). Comorbidity prevalences and circulating biomarker levels (C-reactive protein [CRP], interleukin [IL]-6) were compared between subjects with or without COPD by the two criteria using logistic and multiple regression models, adjusting for sex and age. RESULTS: The prevalence of spirometrically defined COPD by FR increased with age from 10% in subjects aged <65 years to 26% in subjects aged ≥75 years. For LLN-defined COPD, it remained below 10% for all age groups. Overall, COPD diagnosis was not associated with specific comorbidities, except for a lower prevalence of obesity in both FR- and LLN-defined cases. Both CRP and IL-6 tended to be higher in cases by both criteria. CONCLUSION: In a population-based cohort of adults up to the age of 90 years, the prevalence of spirometrically defined COPD was higher for the FR criterion than for the LLN criterion. This difference increased with age. Neither prevalences of common comorbidities nor levels of the biomarkers, CRP or IL-6, were conclusively associated with the selection of the COPD criterion. Results have to be considered in light of the predominantly mild cases of airway obstruction in the examined study population.
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spelling pubmed-49932542016-08-29 What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study Karrasch, Stefan Brüske, Irene Smith, Maia P Thorand, Barbara Huth, Cornelia Ladwig, Karl-Heinz Kronenberg, Florian Heinrich, Joachim Holle, Rolf Peters, Annette Schulz, Holger Int J Chron Obstruct Pulmon Dis Original Research BACKGROUND: There is an ongoing debate about the appropriate spirometric criterion for airway obstruction to detect COPD. Furthermore, the association of different criteria with comorbidity prevalence and inflammatory biomarkers in advanced age is unclear. MATERIALS AND METHODS: Spirometry was performed in a population-based study (n=2,256) covering an age range of 41–90 years. COPD was spirometrically determined either by a fixed ratio (FR) of <0.7 for forced expiratory volume in 1 second (FEV(1))/forced vital capacity (FVC) or by FEV(1)/FVC below the lower limit of normal (LLN). Comorbidity prevalences and circulating biomarker levels (C-reactive protein [CRP], interleukin [IL]-6) were compared between subjects with or without COPD by the two criteria using logistic and multiple regression models, adjusting for sex and age. RESULTS: The prevalence of spirometrically defined COPD by FR increased with age from 10% in subjects aged <65 years to 26% in subjects aged ≥75 years. For LLN-defined COPD, it remained below 10% for all age groups. Overall, COPD diagnosis was not associated with specific comorbidities, except for a lower prevalence of obesity in both FR- and LLN-defined cases. Both CRP and IL-6 tended to be higher in cases by both criteria. CONCLUSION: In a population-based cohort of adults up to the age of 90 years, the prevalence of spirometrically defined COPD was higher for the FR criterion than for the LLN criterion. This difference increased with age. Neither prevalences of common comorbidities nor levels of the biomarkers, CRP or IL-6, were conclusively associated with the selection of the COPD criterion. Results have to be considered in light of the predominantly mild cases of airway obstruction in the examined study population. Dove Medical Press 2016-08-16 /pmc/articles/PMC4993254/ /pubmed/27574413 http://dx.doi.org/10.2147/COPD.S104529 Text en © 2016 Karrasch et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.
spellingShingle Original Research
Karrasch, Stefan
Brüske, Irene
Smith, Maia P
Thorand, Barbara
Huth, Cornelia
Ladwig, Karl-Heinz
Kronenberg, Florian
Heinrich, Joachim
Holle, Rolf
Peters, Annette
Schulz, Holger
What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title_full What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title_fullStr What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title_full_unstemmed What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title_short What is the impact of different spirometric criteria on the prevalence of spirometrically defined COPD and its comorbidities? Results from the population-based KORA study
title_sort what is the impact of different spirometric criteria on the prevalence of spirometrically defined copd and its comorbidities? results from the population-based kora study
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4993254/
https://www.ncbi.nlm.nih.gov/pubmed/27574413
http://dx.doi.org/10.2147/COPD.S104529
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