Valuation of Quality of Life in Children With Asthma

The aim of the study is valuation of quality of life (QL) in children with asthma and analysis of the factors that can have influence on it. The clinical problems included into the aim are to evaluate: * the correlation between the QL and asthma control * the utility of the Polish Version of PAQLQ(S) by Juniper, especially the understanding of each question and it's answers The results of this study can be very helpful in the future in developing a questionnaires to use in Polish Primary Care, according to which the investigators would be able to see whether the asthma in our patients is being well controlled.