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Current wheeze, asthma, respiratory infections, and rhinitis among adults in relation to inspection data and indoor measurements in single-family houses in SwedenThe BETSI study
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Service and Energy Systems.
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2017 (English)In: Indoor Air, ISSN 0905-6947, E-ISSN 1600-0668, Vol. 27, no 4, 725-736 p.Article in journal (Refereed) Published
Abstract [en]

In the Swedish Building Energy, Technical Status and Indoor environment study, a total of 1160 adults from 605 single-family houses answered a questionnaire on respiratory health. Building inspectors investigated the homes and measured temperature, air humidity, air exchange rate, and wood moisture content (in attic and crawl space). Moisture load was calculated as the difference between indoor and outdoor absolute humidity. Totally, 7.3% were smokers, 8.7% had doctor' diagnosed asthma, 11.2% current wheeze, and 9.5% current asthma symptoms. Totally, 50.3% had respiratory infections and 26.0% rhinitis. The mean air exchange rate was 0.36/h, and the mean moisture load 1.70g/m(3). Damp foundation (OR=1.79, 95% CI 1.16-2.78) was positively associated while floor constructions with crawl space (OR=0.49, 95% CI 0.29-0.84) was negatively associated with wheeze. Concrete slabs with overlying insulation (OR=2.21, 95% CI 1.24-3.92) and brick facade (OR=1.71, 95% CI 1.07-2.73) were associated with rhinitis. Moisture load was associated with respiratory infections (OR=1.21 per 1g/m(3), 95% CI 1.04-1.40) and rhinitis (OR=1.36 per 1g/m(3), 95% CI 1.02-1.83). Air exchange rate was associated with current asthma symptoms (OR=0.85 per 0.1/h, 95% CI 0.73-0.99). Living in homes with damp foundation, concrete slabs with overlying insulation, brick facade, low ventilation flow, and high moisture load are risk factors for asthma, rhinitis, and respiratory infections.

Place, publisher, year, edition, pages
WILEY , 2017. Vol. 27, no 4, 725-736 p.
Keyword [en]
asthma, building dampness, indoor environment, mold, rhinitis, ventilation flow
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-211002DOI: 10.1111/ina.12363ISI: 000403895400003PubMedID: 28005296Scopus ID: 2-s2.0-85011105928OAI: oai:DiVA.org:kth-211002DiVA: diva2:1126192
Funder
National Board of Housing, Building and Planning, 2012-1104
Note

QC 20170713

Available from: 2017-07-13 Created: 2017-07-13 Last updated: 2017-07-13Bibliographically approved

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