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Chronic Airflow Limitation, Emphysema and Impaired Diffusing Capacity in Relation to Smoking Habits in a Swedish Middle-Aged Population.

Blomberg, Anders (author)
Torén, Kjell (author)
Liv, Per (author)
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Granåsen, Gabriel (author)
Andersson, Anders (author)
Behndig, Annelie (author)
Bergström, Göran (author)
Brandberg, John (author)
Caidahl, Kenneth (author)
Cederlund, Kerstin (author)
Egesten, Arne (author)
Ekström, Magnus (author)
Eriksson, Maria J (author)
Hagström, Emil (author)
Janson, Christer (author)
Jernberg, Tomas (author)
Kylhammar, David (author)
Lind, Lars (author)
Lindberg, Anne (author)
Lindberg, Eva (author)
Löfdahl, Claes-Göran (author)
Malinovschi, Andrei, 1978- (author)
Uppsala universitet,Integrativ Fysiologi,Klinisk fysiologi,Lung- allergi- och sömnforskning
Mannila, Maria (author)
Nilsson, Lars T (author)
Olin, Anna-Carin (author)
Persson, Anders (author)
Persson, Hans Lennart (author)
Rosengren, Annika (author)
Sundström, Johan (author)
Swahn, Eva (author)
Söderberg, Stefan (author)
Vikgren, Jenny (author)
Wollmer, Per (author)
Östgren, Carl Johan (author)
Engvall, Jan (author)
Sköld, C Magnus (author)
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 (creator_code:org_t)
2024
2024
English.
In: Annals of the American Thoracic Society. - 2329-6933 .- 2325-6621.
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • RATIONALE: Chronic obstructive pulmonary disease (COPD) includes respiratory symptoms and chronic airflow limitation (CAL). In some cases, emphysema and impaired diffusing capacity for carbon monoxide (DLCO) are present, but characteristics and symptoms vary with smoking exposure.OBJECTIVES: To study the prevalence of CAL, emphysema and impaired DLCO in relation to smoking and respiratory symptoms in a middle-aged population.METHODS: We investigated 28,746 randomly invited individuals (52% women) aged 50-64 years across six Swedish sites. We performed spirometry, DLCO, high-resolution computed tomography (HRCT) and asked for smoking habits and respiratory symptoms. CAL was defined as post-bronchodilator forced expiratory volume in 1 second divided by forced expiratory volume (FEV1/FVC)<0.7.RESULTS: The overall prevalence was for CAL 8.8%, for impaired DLCO (DLCOCONCLUSIONS: In this large population-based study of middle-aged people, CAL and impaired DLCO were associated with common respiratory symptoms. Self-reported asthma was not associated with CAL in never-smokers. Our findings suggest that CAL in never-smokers signifies a separate clinical phenotype that may be monitored and, possibly, treated differently from smoking-related COPD. This article is open access and distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/).

Keyword

Lungmedicin
Lung Medicine
Clinical Physiology
Klinisk fysiologi

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