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Table 7 Prevalence of wheezing and allergies among children of Czech ethnicity stratified by region of residence

From: Comparison of child morbidity in regions of Ostrava, Czech Republic, with different degrees of pollution: a retrospective cohort study

Region Number and % of children % of children with wheezing Skin tests, number of tested, % positive
% of children
  N WH% AE% AR% only WH WH + AR + AE WH + AE WH + AR1 N Molds Dog Cat Mites Pollen2
O. south 677 10.0 15.2 9.0 29.4 23.5 29.4 41.2 104 5.8 14.4 14.4 25.0 45.2
O. east 170 37.1 35.3 24.1 6.3 42.9 36.5 57.1 67 7.7 1.0 1.0 9.6 29.8
O. center 289 10.7 13.8 9.3 46.4 3.0 19.4 32.3 76 17.3 4.8 5.8 27.9 35.9
O. west 268 13.1 17.5 8.2 42.9 17.1 28.6 32.6 47 7.7 4.8 3.8 11.5 21.2
  1. Only children living in the four regions of Ostrava from birth to the age of 5 years are included. WH – wheezing, AE – atopic eczema, AR – allergic rhinitis (without differentiating between hay fever and year-round rhinitis). The prevalence of wheezing and allergies is significantly higher in Ostrava east (Kruskal Wallis test, P = 0.0001). Skin tests in children of Czech ethnicity - the percentages of positive tests in the children tested.
  2. 1without regards to AE, 2child positive to any species.