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  • Title: Iberian study of aeroallergens sensitisation in allergic rhinitis.
    Author: Pereira C, Valero A, Loureiro C, Dávila I, Martinez-Cócera C, Murio C, Rico P, Palomino R.
    Journal: Eur Ann Allergy Clin Immunol; 2006 Jun; 38(6):186-94. PubMed ID: 16929745.
    Abstract:
    BACKGROUND: Allergic rhinitis (AR) is a prevalent allergic disease in Iberian countries, but there are no recent epidemiological studies that characterize this pathology according to clinical classification and aeroallergens sensitisation. This is a clinical study, representative of each country METHODS: Descriptive, observational cross-sectional, population-based study carried-out in Portugal and Spain. 3397 consecutive patients (5 regions in Spain and 3 regions in Portugal) were selected for clinical observation and skin prick tests were carried out using the same panel of standardized aeroallergens. RESULTS: 3225 patients (aged 10-50 years old) completed the study (IC 95%, SE 15). Intermittent rhinitis makes up 36% of the entire sample. Of them, intermittent AR mild forms represented 82% in Spain and 92% in Portugal that is, 87% for Iberian countries. Persistent types of rhinitis showed exactly the same rate of severity in Portugal and Spain, 44% mild and 56% moderate/severe. Seasonal forms represent 37% while 63% were perennial. BA was present in 49% of AR patients. There were significant differences between aeroallergens according to the different regions considered. Mites and grass pollens are the most relevant aeroallergens in Spanish and Portuguese AR patients, while Alternaria showed higher positive rates among 10-20 year old patients. CONCLUSIONS: This study characterizes the AR patients in Iberian countries according to the ARIA classification. No correlation was observed between this classification and the conventional (seasonal/perennial). Our results also characterize the allergic cutaneous pattern of aeroallergen sensitisation using the same panel of standardized allergens and show differences between the different regions analysed.
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