RT Journal Article SR Electronic T1 The prevalence of chronic obstructive bronchitis in adolescents tobacco-growing region JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P2189 VO 42 IS Suppl 57 A1 Nematilla Aralov Ravshanovich A1 Muhae Holjigitova YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/P2189.abstract AB The prevalence of chronic bronchitis among adolescents according to epidemiological studies in different countries varies widely, from an average of 10 to 47%. The purpose of this study was examined the incidence of chronic bronchitis among adolescent tobacco-growing district of Samarkand region.A total of 3010 adolescents and young adults, aged 11 to 21 years are living in the tobacco-growing region of Samarkand. Conducted a study of lung ventilation function on the unit "SPIROSIFT-SP-5000" with automatic processing parameters (FUKUDA DENSHI, Japan) 1750 teenager with a history of upper Confirm braeth ways. Verification of patients with chronic obstructive bronchitis conducted according to the international classification of WHO (X revision, ICD-10). The examination included assessment of general clinical research methods (survey, the study objective status, routine paraclinical tests-complete blood count, urinalysis, general analysis of sputum, ECG, X-ray examination of the chest).Inkluding the identification of 722 patients with chronic obstructive bronchitis (23.9%). Test for salbutamol bronhodilatation with 70 patients was pozitive, while 652 patients negative. Epidemiological studies indicate that the increase in the incidence of teenage chronic obstructive bronchitis tobacco-growing district of anthropogenic impacts due to tobacco dust, breach mucociliary clearance and secondary immunodeficiency.