Search for: [Abstract = "e exhaled nitric oxide level \(FeNO\), spirometry, nasal cytology, skin prick tests and blood collection for the determination of selected biochemical parameters \(serum total IgE \(tIgE\), complete peripheral blood eosinophilia \(Eoscomp\), interleukin\-4 \(IL\-4\) and tumor necrosis factor \(TNF\-\). Furthermore, evaluation of bronchial hyperresponsiveness \(BHR\) in children was made in exercise challenge tests by estimation of relative FEV1 fall \(%FEV1\). In the studied children, 45% were girls and 55% boys, in the age\: 10,62,2 and 10,52,1 years, respectively. AR and Non\-AR occurred with similar frequency in the studied children \(53% and 47%, respectively\) and the majority of rhinitis have a persistent form that 79% \(112\/141\), of which the persistent allergic rhinitis \(PAR\) \(n=63\) and persistent non\-allergic rhinitis \(PNon\-AR\) \(n=49\). Children with PNon\-AR were significantly younger than those with PAR \(mean difference app.1 year\) \(p=0,037\). Other demographic data \(gender, height, weight, BMI\) did not differ significantly between groups. In children with PNon\-ANN occurred almost 5\-fold increased risk of moderate\/severe course of disease compared to PAR \(odds ratio \(OR\)=4.8\; p=0.018\). Among the local symptoms only the fact of severe nasal obstruction was significantly more often seen in PNon\-AR \(OR=3.791\; p=0.003\) than in the PAR. The incidence, severity of symptoms PAR and PNon\-AR w"]

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