Determinants of asthma among children and adolescents in Germany. Results of the German Health and Examination Survey for Children and Adolescents (KiGGS)
Abbreviations: N, number; SHS, secondhand tobacco smoke.aInformation on education was missing for 5 subjects.bInformation on smoking was missing for 2 subjects.
Factors associated with asthma symptoms in Colombian subpopulations aged 1 to 17 and 18 to 59: Secondary analysis of the study "Prevalence of asthma and other allergic diseases in Colombia 2009-2010