Decreased COPD prevalence in Sweden after decades of decrease in smoking
Background: COPD has increased in prevalence worldwide over several decades until the first decade after the millennium shift. Evidence from a few recent population studies indicate that the prevalence may be levelling or even decreasing in some areas in Europe. Since the 1970s, a substantial and on...
Published in: | Respiratory Research |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Umeå universitet, Avdelningen för hållbar hälsa
2020
|
Subjects: | |
Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176800 https://doi.org/10.1186/s12931-020-01536-4 |
id |
ftumeauniv:oai:DiVA.org:umu-176800 |
---|---|
record_format |
openpolar |
spelling |
ftumeauniv:oai:DiVA.org:umu-176800 2024-04-28T08:32:34+00:00 Decreased COPD prevalence in Sweden after decades of decrease in smoking Backman, Helena Vanfleteren, Lowie Lindberg, Anne Ekerljung, Linda Stridsman, Caroline Axelsson, Malin Nilsson, Ulf Nwaru, Bright I. Sawalha, Sami Eriksson, Berne Hedman, Linnea Radinger, Madeleine Jansson, Sven-Arne Ullman, Anders Kankaanranta, Hannu Lotvall, Jan Rönmark, Eva Lundbäck, Bo 2020 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176800 https://doi.org/10.1186/s12931-020-01536-4 eng eng UmeÃ¥ universitet, Avdelningen för hÃ¥llbar hälsa UmeÃ¥ universitet, Avdelningen för medicin Department of Health Sciences, LuleÃ¥ University of Technology, LuleÃ¥, Sweden Respiratory Research, 1465-9921, 2020, 21:1, orcid:0000-0002-0553-8067 orcid:0000-0002-3292-7471 orcid:0000-0002-2574-479X orcid:0000-0002-1630-3167 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176800 doi:10.1186/s12931-020-01536-4 PMID 33115506 ISI:000582887600001 Scopus 2-s2.0-85094149463 info:eu-repo/semantics/openAccess COPD Prevalence Risk Population study Epidemiology Respiratory Medicine and Allergy Lungmedicin och allergi Article in journal info:eu-repo/semantics/article text 2020 ftumeauniv https://doi.org/10.1186/s12931-020-01536-4 2024-04-09T23:38:33Z Background: COPD has increased in prevalence worldwide over several decades until the first decade after the millennium shift. Evidence from a few recent population studies indicate that the prevalence may be levelling or even decreasing in some areas in Europe. Since the 1970s, a substantial and ongoing decrease in smoking prevalence has been observed in several European countries including Sweden. The aim of the current study was to estimate the prevalence, characteristics and risk factors for COPD in the Swedish general population. A further aim was to estimate the prevalence trend of COPD in Northern Sweden from 1994 to 2009. Methods: Two large random population samples were invited to spirometry with bronchodilator testing and structured interviews in 2009-2012, one in south-western and one in northern Sweden, n = 1839 participants in total. The results from northern Sweden were compared to a study performed 15 years earlier in the same area and age-span. The diagnosis of COPD required both chronic airway obstruction (CAO) and the presence of respiratory symptoms, in line with the GOLD documents since 2017. CAO was defined as post-bronchodilator FEV1/FVC < 0.70, with sensitivity analyses based on the FEV1/FVC < lower limit of normal (LLN) criterion. Results: Based on the fixed ratio definition, the prevalence of COPD was 7.0% (men 8.3%; women 5.8%) in 2009-2012. The prevalence of moderate to severe (GOLD >= 2) COPD was 3.5%. The LLN based results were about 30% lower. Smoking, occupational exposures, and older age were risk factors for COPD, whereof smoking was the most dominating risk factor. In northern Sweden the prevalence of COPD, particularly moderate to severe COPD, decreased significantly from 1994 to 2009, and the decrease followed a decrease in smoking. Conclusions: The prevalence of COPD has decreased in Sweden, and the prevalence of moderate to severe COPD was particularly low. The decrease follows a major decrease in smoking prevalence over several decades, but smoking remained the ... Article in Journal/Newspaper Northern Sweden Umeå University: Publications (DiVA) Respiratory Research 21 1 |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
COPD Prevalence Risk Population study Epidemiology Respiratory Medicine and Allergy Lungmedicin och allergi |
spellingShingle |
COPD Prevalence Risk Population study Epidemiology Respiratory Medicine and Allergy Lungmedicin och allergi Backman, Helena Vanfleteren, Lowie Lindberg, Anne Ekerljung, Linda Stridsman, Caroline Axelsson, Malin Nilsson, Ulf Nwaru, Bright I. Sawalha, Sami Eriksson, Berne Hedman, Linnea Radinger, Madeleine Jansson, Sven-Arne Ullman, Anders Kankaanranta, Hannu Lotvall, Jan Rönmark, Eva Lundbäck, Bo Decreased COPD prevalence in Sweden after decades of decrease in smoking |
topic_facet |
COPD Prevalence Risk Population study Epidemiology Respiratory Medicine and Allergy Lungmedicin och allergi |
description |
Background: COPD has increased in prevalence worldwide over several decades until the first decade after the millennium shift. Evidence from a few recent population studies indicate that the prevalence may be levelling or even decreasing in some areas in Europe. Since the 1970s, a substantial and ongoing decrease in smoking prevalence has been observed in several European countries including Sweden. The aim of the current study was to estimate the prevalence, characteristics and risk factors for COPD in the Swedish general population. A further aim was to estimate the prevalence trend of COPD in Northern Sweden from 1994 to 2009. Methods: Two large random population samples were invited to spirometry with bronchodilator testing and structured interviews in 2009-2012, one in south-western and one in northern Sweden, n = 1839 participants in total. The results from northern Sweden were compared to a study performed 15 years earlier in the same area and age-span. The diagnosis of COPD required both chronic airway obstruction (CAO) and the presence of respiratory symptoms, in line with the GOLD documents since 2017. CAO was defined as post-bronchodilator FEV1/FVC < 0.70, with sensitivity analyses based on the FEV1/FVC < lower limit of normal (LLN) criterion. Results: Based on the fixed ratio definition, the prevalence of COPD was 7.0% (men 8.3%; women 5.8%) in 2009-2012. The prevalence of moderate to severe (GOLD >= 2) COPD was 3.5%. The LLN based results were about 30% lower. Smoking, occupational exposures, and older age were risk factors for COPD, whereof smoking was the most dominating risk factor. In northern Sweden the prevalence of COPD, particularly moderate to severe COPD, decreased significantly from 1994 to 2009, and the decrease followed a decrease in smoking. Conclusions: The prevalence of COPD has decreased in Sweden, and the prevalence of moderate to severe COPD was particularly low. The decrease follows a major decrease in smoking prevalence over several decades, but smoking remained the ... |
format |
Article in Journal/Newspaper |
author |
Backman, Helena Vanfleteren, Lowie Lindberg, Anne Ekerljung, Linda Stridsman, Caroline Axelsson, Malin Nilsson, Ulf Nwaru, Bright I. Sawalha, Sami Eriksson, Berne Hedman, Linnea Radinger, Madeleine Jansson, Sven-Arne Ullman, Anders Kankaanranta, Hannu Lotvall, Jan Rönmark, Eva Lundbäck, Bo |
author_facet |
Backman, Helena Vanfleteren, Lowie Lindberg, Anne Ekerljung, Linda Stridsman, Caroline Axelsson, Malin Nilsson, Ulf Nwaru, Bright I. Sawalha, Sami Eriksson, Berne Hedman, Linnea Radinger, Madeleine Jansson, Sven-Arne Ullman, Anders Kankaanranta, Hannu Lotvall, Jan Rönmark, Eva Lundbäck, Bo |
author_sort |
Backman, Helena |
title |
Decreased COPD prevalence in Sweden after decades of decrease in smoking |
title_short |
Decreased COPD prevalence in Sweden after decades of decrease in smoking |
title_full |
Decreased COPD prevalence in Sweden after decades of decrease in smoking |
title_fullStr |
Decreased COPD prevalence in Sweden after decades of decrease in smoking |
title_full_unstemmed |
Decreased COPD prevalence in Sweden after decades of decrease in smoking |
title_sort |
decreased copd prevalence in sweden after decades of decrease in smoking |
publisher |
Umeå universitet, Avdelningen för hållbar hälsa |
publishDate |
2020 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176800 https://doi.org/10.1186/s12931-020-01536-4 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
Respiratory Research, 1465-9921, 2020, 21:1, orcid:0000-0002-0553-8067 orcid:0000-0002-3292-7471 orcid:0000-0002-2574-479X orcid:0000-0002-1630-3167 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176800 doi:10.1186/s12931-020-01536-4 PMID 33115506 ISI:000582887600001 Scopus 2-s2.0-85094149463 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1186/s12931-020-01536-4 |
container_title |
Respiratory Research |
container_volume |
21 |
container_issue |
1 |
_version_ |
1797589708215156736 |