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Aspirin-intolerant asthma in the population: prevalence and important determinants
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2015 (English)In: Clinical and Experimental Allergy, ISSN 0954-7894, E-ISSN 1365-2222, Vol. 45, no 1, 211-219 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Population-based studies on aspirin-intolerant asthma are very few and no previous population study has investigated risk factors for the condition.

OBJECTIVE: To investigate the prevalence and risk factors of aspirin-intolerant asthma in the general population.

METHODS: A questionnaire on respiratory health was mailed to 30 000 randomly selected subjects aged 16-75 years in West Sweden, 29 218 could be traced and 18 087 (62%) responded. The questionnaire included questions on asthma, respiratory symptoms, aspirin-induced dyspnea and possible determinants.

RESULTS: The prevalence of aspirin-intolerant asthma was 0.5%, 0.3% in men and 0.6% in women (p=0.014). Sick leave, emergency visits due to asthma and all investigated lower respiratory symptoms were more common in aspirin-intolerant asthma than in aspirin-tolerant asthma. Obesity was a strong risk factor for aspirin-intolerant asthma (BMI>35: OR 12.1; 95% CI 2.49-58.5) and there was a dose-response relationship between increasing body mass index and risk of aspirin-intolerant asthma. Obesity, airborne occupational exposure and visible mold at home were considerably stronger risk factors for aspirin-intolerant asthma than for aspirin-tolerant asthma. Current smoking was a risk factor for aspirin-intolerant asthma (OR 2.55; 95% CI 1.47-4.42), but not aspirin-tolerant asthma.

CONCLUSION: Aspirin-intolerant asthma identified in the general population was associated with a high burden of symptoms, uncontrolled disease and a high morbidity. Increasing body mass index increased the risk of aspirin-intolerant asthma in a dose-response manner. A number of risk factors, including obesity and current smoking, were considerably stronger for aspirin-intolerant asthma than for aspirin-tolerant asthma.

Place, publisher, year, edition, pages
John Wiley & Sons, 2015. Vol. 45, no 1, 211-219 p.
Keyword [en]
aspirin-intolerant asthma, epidemiology, risk factors, obesity, population survey
National Category
Environmental Health and Occupational Health
URN: urn:nbn:se:umu:diva-96072DOI: 10.1111/cea.12359ISI: 000346910800024PubMedID: 24961377OAI: diva2:762226
Available from: 2014-11-11 Created: 2014-11-11 Last updated: 2016-03-11Bibliographically approved

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Bjerg, AndersRönmark, Eva
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