BACKGROUND Little is known about the epidemiology of rhinitis, particularly the perennial and non-allergic forms. The aim of this study was to compare the symptoms, atopic state, and medical history of individuals with seasonal and perennial rhinitis. DESIGN Of 7702 adults aged 16-65 years registered with a London general practice, 2969 (30%) were screened by postal questionnaire. Samples of ...

The relative importance of atopy in the aetiology of rhinitis is largely unknown. The present study investigated the geographical variations in rhinitis in relation to atopy. The cross-sectional study involved 54,178 children (aged 8-12 yrs) from 30 study centres in 22 countries worldwide. Symptoms of rhinoconjunctivitis and rhinitis without conjunctivitis in the last 12 months were reported in...

BACKGROUND Little is known about prevalence and risk factors of allergic rhinitis and chronic nasal symptoms among adults in Vietnam. We aimed to estimate the prevalence, risk factor patterns and co-morbidities of allergic rhinitis and chronic nasal symptoms in one urban and one rural area in northern Vietnam. METHODS A cross-sectional questionnaire survey was conducted from August 2007 to Ja...

OBJECTIVE To estimate the prevalence of respiratory symptoms and to analyze associated factors as well as peak expiratory flow measurements in schoolchildren. METHODS This is a descriptive cross-sectional study with schoolchildren aged 10-14 from the city of Monte Aprazível (Southeastern Brazil). Questionnaires containing the asthma and rhinitis components of the International Study of Asthma...

Th17 cells and IL-17A play a role in the development and progression of allergic diseases. We analyzed the IL-17A levels in sputum supernatants (Ss), nasal wash (NW) and plasma (P) from Healthy Controls (HC) and children with Asthma/Rhinitis. We tested the expression of IL-17A, RORγ(t) and FOXP3 in peripheral blood T-lymphocytes from intermittent and mild-moderate asthma. The effect of Budesoni...

BACKGROUND Despite an increasing recognition that both asthma and allergic rhinitis are serious health disorders in Thailand, their combined effects on patients' quality of life in the Thai population has not been reported. OBJECTIVE The study aimed to evaluate the impacts of allergic rhinitis and asthma on the quality of life of young adolescents in Thailand. METHODS A total of 1,440 pupil...

OBJECTIVE Allergic rhinitis can determine the presence and type of asthma. The main aim of this study was to evaluate the link between allergic rhinitis, asthma, and skin test sensitization in patients with allergic rhinitis. METHODS Patients with allergic rhinitis, aged 10 to 50 years, were consecutively enrolled at different allergy centers in Spain and Portugal. All the patients underwent ...

The prevalence of allergic rhinitis and asthma has recently increased in Korea, and both conditions are recognized as major chronic respiratory diseases requiring active intervention. The prevalence of rhinitis among asthmatic patients is high, ranging from 60 to 80%, and could seriously affect asthma severity and outcome. We suggest that allergic rhinitis should be properly evaluated in asthma...