Study period |
Between 01.2013 and 12.2014 |
Date of birth |
Between 01.2004 and 12.2012 |
Age groups |
Total of 111 children: infants – 0–2 years (21), preschoolers – 3–5 years (55), school children – 6–10 years (35) |
Gender |
60 males (54 %), 51 females (46 %) |
Grouping by home address in a region of the city (total of children) |
Group A (61), Group B (20), Group C (30) |
Grouping by home address in a region of the city (sensitive children) |
Group A (38), Group B (7), Group C (27) |
Selection criteria for sensitive children |
Number of wheezing episodes; eosinophil count; immunoglobulin E (IgE) serum level; response to inhalation medication |
Medical records |
Numbers of wheezing episodes and hospitalizations were counted starting with a child’s first consultation/admission in hospital during the study period; blood test indicators of each child were averaged on the study period |