Information on rhinitis epidemiology in preschool children is scarce.To estimate, in children with 3-5 years of age, current rhinitis prevalence, to describe rhinitis symptoms and associated sociodemographic characteristics, and to report allergic rhinitis and its impact on asthma (ARIA) classification.Cross-sectional, nationwide, population-based study including children aged 3-5 years. A multistep selection strategy was used to obtain a representative sample. Data were collected at kindergartens and parish centers by face-to-face interview to caregivers, using an adapted ISAAC questionnaire. 'Current rhinitis' (CR) was defined as the presence of ≥1 rhinitis symptom (repeated sneezing and/or itchy nose, blocked nose for >1 h, or runny nose without having a cold/flu) in the last year. Rhinitis lasting ≥4 days/week and ≥4 consecutive weeks was classified as persistent. Moderate-severe disease interfered 'a moderate amount' or 'a lot' in daily activities.Five thousand and eighteen children were included. CR prevalence was 43.4

作者：M, Morais-Almeida；N, Santos；A M, Pereira；M, Branco-Ferreira；C, Nunes；J, Bousquet；J A, Fonseca

来源：Allergy 2013 年 68卷 10期