Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học 'Respiratory Research cung cấp cho các bạn kiến thức về ngành y đề tài: "Incidence of asthma and mortality in a cohort of young adults: a 7-year prospective study. | Respiratory Research BioMed Central Research Open Access Incidence of asthma and mortality in a cohort of young adults a 7-year prospective study Roberto de Marco 1 Francesca Locatelli1 Lucia Cazzoletti1 Massimilian Bugianio2 Aurelia Carosso2 and Alessandra Marinoni3 Address 1Unit of Epidemiology and Medical Statistics University of Verona Verona Italy 2National Health Service CPA-ASL 4 Unit of Respiratory Medicine Turin Italy and 3Department of Applied Health Sciences University of Pavia Pavia Italy Email Roberto de Marco - Francesca Locatelli - Lucia Cazzoletti - Massimilian Bugianio - maxbugiani@ Aurelia Carosso - acarosso@ Alessandra Marinoni - Corresponding author Published 16 August 2005 Received 28 June 2005 Respiratory Research 2005 6 95 doi l465-992l-6-95 Accepted 16 August 2005 This article is available from http content 6 l 95 2005 Roberto et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Few longitudinal data exist on the incidence of asthma in young adults and on the overall mortality risk due to asthma. A 7-year follow-up prospective study was performed to assess the incidence of asthma and mortality from all causes in a cohort of young adults. Methods The life status of a cohort of 6031 subjects aged 20-44 years who replied to a respiratory screening questionnaire between l99l and l992 was ascertained in l999. A new questionnaire investigating the history of asthma was subsequently sent to the 5236 subjects who were still alive and residents in the areas of the study. 3880 subjects 74 replied to the second questionnaire. .