Copyright ©ERS Journals Ltd 2002 Trends in prevalence of atopic diseases and allergic sensitization in children in Eastern Germany1 GSF-National Research Centre for Environment and Health Institute of Epidemiology and 2 Ludwig-Maximilians-University of Munich, Chair of Epidemiology, University of Munich, Neuherberg, Germany CORRESPONDENCE: J. Heinrich, GSF-Institute of Epidemiology, PO Box 1129, D-85758, Oberschleissheim, Germany. Fax: 49 8931873380. E-mail: joachim.heinrich@gsf.de Keywords: atopic disease, allergic sensitization, children, East Germany, epidemiology, trend
Received: July 19, 2001
This study was supported exclusively by a governmental funding source, the Federal Environmental Agency (Umweltbundesamt) Grants No. 116 09 002, 116 002/02, 298 61 724.
Trends in prevalence of atopic diseases and allergic sensitization in children from Eastern Germany during the 1990s were analysed.
The study consisted of three regional cross-sectional surveys of a total of 7,632 children (aged 514 yrs) in 19921993, 19951996, and 19981999. Information was gathered on atopic diseases and potential predictors by a parental questionnaire. Allergic sensitization for birch, grass, mite, cat, and cladosporium were assessed by radioallergosorbent test (RAST).
After adjustment for age, sex and the study area of the participants, prevalence increased between the first and third survey for hay fever, for asthma and for atopic eczema. The adjusted prevalence of allergic sensitization (RAST >0.35 kU·L1) showed a decrease, whereas the prevalence of strong sensitization (RAST
A clear increase in the prevalence of atopic diseases, with the exception of hay fever, was observed as well as a shift towards a stronger allergic sensitization, which might affect the onset of clinical manifestations of atopic diseases.
Differences in the epidemiology of respiratory symptoms, illnesses and allergies between populations living in the former East Germany and those living in the former West Germany have been reported. Among East German children, lower prevalence rates of asthma, and positive skin-prick tests were observed compared to West German children in the early 1990s 15. Similarly, among East German adults, lower specific immunoglobulin (Ig) E levels and lower prevalence rates of asthma, wheezing, positive methacholine-challenge tests, allergic rhinitis, and positive skin-prick tests have been reported compared to those of West German adults 6, 7.
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