Predicting an asthma exacerbation in children 2 to 5 years of age

Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology
Arlene S SwernHans Bisgaard

Abstract

Asthma exacerbations in young children are prevalent. Identification of symptoms or other factors that are precursors of asthma exacerbations would be useful for early treatment and prevention. To determine whether diary symptoms and beta2-agonist use before an exacerbation could predict an asthma exacerbation in children 2 to 5 years of age. Post hoc analyses were conducted on data collected in a study of 689 patients 2 to 5 years of age with asthma symptoms, randomly assigned to montelukast, 4 mg, or placebo daily for 12 weeks. During the study, 196 patients had an exacerbation. Caregiver-reported information (daytime cough, breathing difficulties, limitation of activity, nighttime cough or awakening, daytime and nighttime beta2-agonist use) were analyzed using general estimating equations with an exchangeable within-subject log odds ratio regression structure to identify predictors of an exacerbation. Average symptom scores and beta2-agonist use increased significantly before exacerbation but at different rates. A combination of daytime cough and wheeze and nighttime beta2-agonist use 1 day before the exacerbation was identified as strongly predictive of an exacerbation. These methods predicted 149 (66.8%) of the exacerbatio...Continue Reading

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Dec 14, 2011·Revue des maladies respiratoires·A Carsin, N Pham-Thi
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