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Title: | Worldwide variations in prevalence of symptoms of allergic rhinoconjunctivitis in children : the international study of asthma and allergies in childhood |
Authors: | Strachan, David Sibbald, Bonnie Weiland, Stephan Ait‐Khaled, Nadia Anabwani, Gabriel Ross Anderson, H. Asher, M. Innes Beasley, Richard Bjorksten, Bengt Burr, Michael Clayton, Tadd Crane, Julian Ellwood, Philippa Keil, Ulrich Lai, Christopher Mallol, Javier Martinez, Fernando Mitchell, Edwin Montefort, Stephen Pearce, Neil Robertson, Colin Shah, Jayant Stewart, Alistair Von Mutius, Erika Williams, Hywel |
Keywords: | Rhinitis Conjunctivitis Hay fever Epidemiology -- Case studies |
Issue Date: | 1997 |
Publisher: | Blackwell Publishing Ltd |
Citation: | Strachan, D., Sibbald, B., Weiland, S., Ait‐Khaled, N., Anabwani, G., Anderson, H. R., ... & Williams, H. (1997). Worldwide variations in prevalence of symptoms of allergic rhinoconjunctivitis in children: the International Study of Asthma and Allergies in Childhood (ISAAC). Pediatric Allergy and Immunology, 8(4), 161-168. |
Abstract: | Background: As part of the International Study of Asthma and Allergies in Childhood (ISAAC), prevalence surveys were conducted among representative samples of school children from locations in Europe, Asia, Africa, Australasia, North and South America. Subjects: 257.800 children aged 6-7 years from 91 centres in 38 countries, and 463,801 children aged 13-14 years from 155 centres in 56 countries. Methods: Written symptom questionnaires were translated from English into the local language for self-completion why the 13-14-year-olds and completion by the parent’s of the 6-7-year-olds. Rhinitis was described as a problem with sneezing, or a runny, or blocked nose when you (your child) DID NOT have a cold or the 'flu. Additional questions were asked about rhinitis associated with itchy-watery eyes, interference with activities and a history of hay fever ever. Results: The prevalence of rhinitis with itchy-watery eyes rhinoconjunctivitis in the past year varied across centres from 0.8% to 14.9% in the 6-7-year-olds and from 1.4% to 39.7% in the 13-14-year-olds. Within each age group, the global pattem was broadly consistent across each of the symptom categories. In centres of higher prevalence there was great variability in the proportion of rhinoconjunctiviti’s labelled as hay fever. The lowest prevalence of rhinoconjunctivitis were found in parts of eastern Europe. south and central Asia. High prevalence were reported from centres in several regions. Conclusion: These results suggest substantial worldwide variations in the prevalence and labelling of symptoms of allergic rhinoconjunctivitis which require further study. These differences, if real, may offer important clues to environmental influences on allergy. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/86623 |
ISSN: | 0905-6157 |
Appears in Collections: | Scholarly Works - FacM&SMed |
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File | Description | Size | Format | |
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Worldwide_variations_in_prevalence_of_symptoms_of_allergic_rhinoconjunctivitis_in_children.pdf Restricted Access | 4.72 MB | Adobe PDF | View/Open Request a copy |
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