Occupational Asthma Reference

Wang J, Pindus M, Janson C, Sigsgaard T, Kim J, Holm M, Sommar J, Orru H, Gislason T, Johannessen A, Bertelsen RJ, Norbäck D, Dampness, mould, onset and remission of adult respiratory symptoms, asthma and rhinitis, Eur Respir J, 2019;53:1801921,DOI: 10.1183/13993003.01921-2018
(Plain text: Wang J, Pindus M, Janson C, Sigsgaard T, Kim J, Holm M, Sommar J, Orru H, Gislason T, Johannessen A, Bertelsen RJ, Norback D, Dampness, mould, onset and remission of adult respiratory symptoms, asthma and rhinitis, Eur Respir J)

Keywords: RHINE, Iceland, Norway, Sweden, Denmark, Estonia, damp, mould, asthma, ep, questionnaire, home, work, incidence

Known Authors

Torben Sigsgaard, University of Aarhus Torben Sigsgaard

Dan Norback, Dan Norback

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Abstract

Study question
Is dampness and indoor mould associated with onset and remission of respiratory symptoms, asthma and rhinitis among adults?

Materials and methods
Associations between dampness, mould and mould odour at home and at work and respiratory health were investigated in a cohort of 11?506 adults from Iceland, Norway, Sweden, Denmark and Estonia. They answered a questionnaire at baseline and 10 years later, with questions on respiratory health, home and work environment.

Results
Baseline water damage, floor dampness, mould and mould odour at home were associated with onset of respiratory symptoms and asthma (OR 1.23–2.24). Dampness at home during follow-up was associated with onset of respiratory symptoms, asthma and rhinitis (OR 1.21–1.52). Dampness at work during follow-up was associated with onset of respiratory symptoms, asthma and rhinitis (OR 1.31–1.50). Combined dampness at home and at work increased the risk of onset of respiratory symptoms and rhinitis. Dampness and mould at home and at work decreased remission of respiratory symptoms and rhinitis.

The answer to the question
Dampness and mould at home and at work can increase onset of respiratory symptoms, asthma and rhinitis, and decrease remission.

Plain text: Study question Is dampness and indoor mould associated with onset and remission of respiratory symptoms, asthma and rhinitis among adults? Materials and methods Associations between dampness, mould and mould odour at home and at work and respiratory health were investigated in a cohort of 11?506 adults from Iceland, Norway, Sweden, Denmark and Estonia. They answered a questionnaire at baseline and 10 years later, with questions on respiratory health, home and work environment. Results Baseline water damage, floor dampness, mould and mould odour at home were associated with onset of respiratory symptoms and asthma (OR 1.23-2.24). Dampness at home during follow-up was associated with onset of respiratory symptoms, asthma and rhinitis (OR 1.21-1.52). Dampness at work during follow-up was associated with onset of respiratory symptoms, asthma and rhinitis (OR 1.31-1.50). Combined dampness at home and at work increased the risk of onset of respiratory symptoms and rhinitis. Dampness and mould at home and at work decreased remission of respiratory symptoms and rhinitis. The answer to the question Dampness and mould at home and at work can increase onset of respiratory symptoms, asthma and rhinitis, and decrease remission.

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Associated Questions

Registered users of this website have associated this reference with the following questions. This association is not a part of the BOHRF occupational asthma guidelines.

Is exposure to agents in the workplace a risk factor for developing occupational asthma?
burgeps This is a prospective questionnaire-based study which shows that adults (mean age 40) without asthma or rhinitis reporting dampness or mould odour at home or work are more likely to report doctor diagnosed asthma over the next 11 years than those not reporting dampness or mould odour at baseline. New onset doctor diagnosed asthma was reported in 4.3% and rhinitis symptoms in 26%. The adjusted odds ratio for doctor diagnosed asthma was 1.4 (95% CI 1.1-1.79) in those reporting dampness or mould in their workplace, 1.32 (95% CI 1.06–1.65) at home and 1.51 (95% CI 1.06–2.15) at both home and work. The mechanisms for the increased risks are not discussed.

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