Ecological Systems and Devices Annotation << Back Classification trees method in problems of the risk factors influence on children health Konstantinova E.D., Varaksin A.N. The paper presents ideology of using one of estimating methods for multifactorial influence of risk factors on population health – the method of Classification Trees. The method is applied for analyzing influence of risk factors complex on prevalence of respiratory apparatus pathologies and prevalence of mental and behavioral disorders among preschool children living in Ekaterinburg. It is shown that ecological risk factors complex (air pollution, drinking water quality etc.) jointly with socio-economic factors from 2.5 to 4 times increase prevalence of preschool children’s pathologies in Ekaterinburg. Key words: children health; risk factors; mathematical modeling; statistical analysis; classification trees method. Phone: (343) 362-35-14