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, Results: Of the 864 analyzed visits, 532 were by pediatric patients (aged 3 to 16 years) and 332 by adult patients (aged over 16 years)

P. Oleaceae and M. , adults, pollens positively correlated with asthma exacerbations were Urticaceae, Oleaceae, Moraceae, and Chenopodiaceae. In children, these were Urticaceae

, Molds positively correlated with asthma exacerbations in adults were ascospores and basidiospores. Only basidiospores were positively correlated with exacerbations in children

, Temperature was positively correlated with exacerbations in both adults and children. The pollutants PM10 and NOx were positively correlated with exacerbations in children. Influenza epidemics were strongly correlated with exacerbations in both adults and children. Conclusion: Our analysis shows that in Reunion Island, asthma is exacerbated by pollens

O. Urticaceae and P. , Myrtaceae in children), molds (ascospores and basidiospores in adults; basidiospores in children), temperature, influenza, and the pollutants PM10 and NOx

, Keywords: Asthma exacerbations; Reunion Island; Tropical; Pollens; Molds

, Meteorological parameters; Influenza; Emergencies