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The association of body mass index, weight gain and central obesity with activity-related breathlessness: the Swedish Cardiopulmonary Bioimage Study
Lund Univ, Sweden.
Umea Univ, Sweden.
Univ Gothenburg, Sweden.
Univ Gothenburg, Sweden.
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2019 (English)In: Thorax, ISSN 0040-6376, E-ISSN 1468-3296, Vol. 74, no 10, p. 958-964Article in journal (Refereed) Published
Abstract [en]

Introduction Breathlessness is common in the population, especially in women and associated with adverse health outcomes. Obesity (body mass index (BMI) amp;gt;30 kg/m(2)) is rapidly increasing globally and its impact on breathlessness is unclear. Methods This population-based study aimed primarily to evaluate the association of current BMI and self-reported change in BMI since age 20 with breathlessness (modified Research Council score amp;gt;= 1) in the middle-aged population. Secondary aims were to evaluate factors that contribute to breathlessness in obesity, including the interaction with spirometric lung volume and sex. Results We included 13 437 individuals; mean age 57.5 years; 52.5% women; mean BMI 26.8 (SD 4.3); mean BMI increase since age 20 was 5.0 kg/m(2); and 1283 (9.6%) reported breathlessness. Obesity was strongly associated with increased breathlessness, OR 3.54 (95% CI, 3.03 to 4.13) independent of age, sex, smoking, airflow obstruction, exercise level and the presence of comorbidities. The association between BMI and breathlessness was modified by lung volume; the increase in breathlessness prevalence with higher BMI was steeper for individuals with lower forced vital capacity (FVC). The higher breathlessness prevalence in obese women than men (27.4% vs 12.5%; pamp;lt;0.001) was related to their lower FVC. Irrespective of current BMI and confounders, individuals who had increased in BMI since age 20 had more breathlessness. Conclusion Breathlessness is independently associated with obesity and with weight gain in adult life, and the association is stronger for individuals with lower lung volumes.

Place, publisher, year, edition, pages
BMJ PUBLISHING GROUP , 2019. Vol. 74, no 10, p. 958-964
Keywords [en]
dyspnoea; sex; weight; lung function; lung volume
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:liu:diva-160996DOI: 10.1136/thoraxjnl-2019-213349ISI: 000487508000008PubMedID: 31434752OAI: oai:DiVA.org:liu-160996DiVA, id: diva2:1367498
Note

Funding Agencies|Swedish Heart and Lung FoundationSwedish Heart-Lung Foundation; Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation; Swedish Research CouncilSwedish Research Council; VINNOVA (Swedens Innovation agency)Vinnova; University of Gothenburg; Sahlgrenska University Hospital, Karolinska Institutet; Karolinska University Hospital, Linkoping University and University Hospital, Lund University; Skane University Hospital, Umea University and University Hospital, Uppsala University and University Hospital; AFA Insurance [160334]; Swedish government; ALF [ALG-GBG-74300, ALF-VLL-548791, ALFLIO-700841]; Swedish Society of Medicine; Swedish Heart-Lung FoundationSwedish Heart-Lung Foundation; Swedish Society for Medical Research

Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-04

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Engvall, JanPersson, LennartSwahn, EvaÖstgren, Carl Johan
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Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Clinical Physiology in LinköpingDepartment of Respiratory MedicineDepartment of Cardiology in LinköpingDivision of Community Medicine"Primary Health Care in Motala"
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Public Health, Global Health, Social Medicine and Epidemiology

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