Determinants of asthma among children and adolescents in Germany. Results of the German Health and Examination Survey for Children and Adolescents (KiGGS)
Definition of abbreviations: CI – confidence interval; OR – odds ratio; BHR – Bronchial Hyper-Responsiveness. aBeta-glucan levels in house dust. bEndotoxin levels in house dust. cAlternaria sensitizat
ABSTRACT Objective To estimate the frequency of secondhand smoke exposure among patients with asthma. Methods A cross-sectional study of asthma patients and non-asthmatic controls using questionnair