PMID: 9663517Jul 15, 1998Paper

Increasing risk of asthma without other atopic diseases in school children: a repeated cross-sectional study after 13 years

European Journal of Epidemiology
W NystadA Gulsvik

Abstract

Some children develop asthma and other atopic diseases, others asthma without atopic diseases. To better understand secular trends, we estimated the relative increase in asthma in children with (atopy related asthma) and without (non-atopy related asthma) other atopic diseases (eczema or hay fever) in two samples of school children born, 1965-1975 (n = 1674) and 1978-1988 (n = 2188). By analysing the samples as historical cohorts, age-specific prevalence rates were estimated and incidence rates were calculated (number of new cases by 1000 person years under risk). Cox regression was used to estimate the relative risk (RR) of asthma by year of birth. The point prevalence of asthma was 1.9% (95% CI: 1.4-2.4) in the 1965-1975 cohort and 4.6% (95% CI: 3.8-5.4) in the 1978-1988 cohort for three-year old children, and remained fairly constant throughout childhood. The age-specific prevalence of non-atopy related asthma increased relatively more from 1965-1975 to 1978-1988 compared to atopy related asthma. The age-specific incidence rates of asthma showed that the RRs comparing the two cohorts tended at all ages to be highest for non-atopy related asthma. The relative risks of non-atopy related asthma by gender and birth cohort, showe...Continue Reading

Citations

Aug 2, 2000·Allergy·A Høst, S Halken
Oct 27, 2001·Clinical and Experimental Allergy : Journal of the British Society for Allergy and Clinical Immunology·M H WieringaJ J Weyler
Sep 27, 2006·Acta Paediatrica. Supplement·Hanns MoshammerMoniek Zuurbier
Apr 25, 2008·Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology·Michael B AnthracopoulosKostas N Priftis
Apr 3, 2009·Environmental Health : a Global Access Science Source·Talar SahsuvarogluRick Burnett
Jul 25, 2012·Journal of Attention Disorders·Adela Masana MarínInti Ney
Mar 7, 2006·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Simon Francis ThomsenVibeke Backer
Nov 6, 2004·Child: Care, Health and Development·B MiltonV Hamilton

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