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Sökning: swepub > Umeå universitet > Göteborgs universitet > Bjerg Anders > Refereegranskat > Lötvall Jan

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  • Eriksson, Jonas, et al. (författare)
  • Aspirin-intolerant asthma in the population:
  • 2015
  • Ingår i: Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology. - 1365-2222. ; 45:1
  • Tidskriftsartikel (refereegranskat)abstract
    • 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.
  • Eriksson, Jonas, 1984-, et al. (författare)
  • Rhinitis phenotypes correlate with different symptom presentation and risk factor patterns of asthma.
  • 2011
  • Ingår i: Respiratory medicine. - 1532-3064. ; 105:11, s. 1611-21
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Asthma and rhinitis frequently coexist, but no population study has previously determined the relationship between nasal comorbidities and symptom expression and risk factors of asthma.Methods: In 2008, a postal questionnaire on respiratory health was sent to 30 000 randomly selected subjects aged 16-75 years in West Sweden; 29218 could be traced and 18 087 (62%) responded. The questionnaire included questions on asthma, rhinitis, chronic rhinosinusitis, respiratory symptoms and possible determinants.Results: Prevalence of allergic rhinitis in asthma was 63.9% and of asthma in allergic rhinitis 19.8%. Prevalence of chronic rhinosinusitis in asthma was 8.4% and of asthma in chronic rhinosinusitis 24.4%. Asthma subjects with chronic rhinitis, or chronic rhinosinusitis, had more symptoms of asthma and bronchitis than those without rhinitis (p < 0.001). There was an obvious trend of higher ORs for various environmental exposures including occupational exposure to dust, gases and fumes (OR 2.32 vs. OR 1.44), visible mould at home (OR 1.72 vs. OR 1.27) and water damage at home (OR 1.82 vs. OR 1.06) for asthma with chronic rhinosinusitis than for asthma with allergic rhinitis. Family history of allergy yielded a higher OR for asthma with allergic rhinitis than with asthma with chronic rhinosinusitis (OR 7.15 vs. OR 4.48).Conclusion: Considerable overlap between asthma and nasal comorbidities was documented, confirming a close relationship between nasal disease and asthma. Allergic rhinitis, chronic rhinitis and chronic rhinosinusitis were associated with different risk factor patterns and symptom expression of asthma. Thus, different nasal comorbidities may reflect different phenotypes of asthma. (C) 2011 Elsevier Ltd. All rights reserved.
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