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Airflow obstruction and use of solid fuels for cooking or heating: BOLD results

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Title: Airflow obstruction and use of solid fuels for cooking or heating: BOLD results
Authors: Amaral, AFS
Patel, J
Kato, BS
Obaseki, DO
Lawin, H
Tan, WC
Juvekar, SK
Harrabi, I
Studnicka, M
Wouters, EFM
Loh, LC
Bateman, ED
Mortimer, K
Buist, AS
Burney, PGJ
Item Type: Journal Article
Abstract: Rationale: Evidence supporting the association of COPD or airflow obstruction with use of solid fuels is conflicting and inconsistent. Objective: To assess the association of airflow obstruction with self-reported use of solid fuels for cooking or heating. Methods: We analysed 18,554 adults from the BOLD study, who had provided acceptable post-bronchodilator spirometry measurements and information on use of solid fuels. The association of airflow obstruction with use of solid fuels for cooking or heating was assessed by sex, within each site, using regression analysis. Estimates were stratified by national income and meta-analysed. We carried out similar analyses for spirometric restriction, chronic cough and chronic phlegm. Measurements and main results: We found no association between airflow obstruction and use of solid fuels for cooking or heating (ORmen=1.20, 95%CI 0.94-1.53; ORwomen=0.88, 95%CI 0.67-1.15). This was true for low/middle and high income sites. Among never smokers there was also no evidence of an association of airflow obstruction with use of solid fuels (ORmen=1.00, 95%CI 0.57-1.76; ORwomen=1.00, 95%CI 0.76-1.32). Overall, we found no association of spirometric restriction, chronic cough or chronic phlegm with the use of solid fuels. However, we found that chronic phlegm was more likely to be reported among female never smokers and those who had been exposed for ≥20 years. Conclusion: Airflow obstruction assessed from post-bronchodilator spirometry was not associated with use of solid fuels for cooking or heating.
Issue Date: 1-Mar-2018
Date of Acceptance: 6-Sep-2017
URI: http://hdl.handle.net/10044/1/50658
DOI: 10.1164/rccm.201701-0205OC
ISSN: 1073-449X
Publisher: American Thoracic Society
Start Page: 595
End Page: 610
Journal / Book Title: American Journal of Respiratory and Critical Care Medicine
Volume: 197
Issue: 5
Copyright Statement: Copyright © 2017 American Thoracic Society
Sponsor/Funder: Wellcome Trust
Funder's Grant Number: 085790/Z/08/Z
Keywords: Science & Technology
Life Sciences & Biomedicine
Critical Care Medicine
Respiratory System
General & Internal Medicine
chronic obstructive pulmonary disease
airflow obstruction
solid fuels (biomass)
low-income countries
CHIMNEY STOVE INTERVENTION
PULMONARY-DISEASE
RISK-FACTORS
NEVER-SMOKERS
CHRONIC-BRONCHITIS
REFERENCE VALUES
BIOMASS SMOKE
YOUNG-ADULTS
LOWER LIMIT
POLLUTION
Airflow obstruction
COPD
Low income countries
Solid fuels (biomass)
BOLD Collaborative Research Group
Biomass
Airway Obstruction
11 Medical and Health Sciences
Respiratory System
Publication Status: Published
Online Publication Date: 2017-09-12
Appears in Collections:Department of Infectious Diseases
National Heart and Lung Institute
Faculty of Medicine