Twelve-year cumulative incidence of airflow obstruction among Japanese males
| Autor: | Tohru Marubayashi, Hisamitsu Omori, Megumi Nagano, Hirotsugu Kohrogi, Ayumi Onoue, Hisamichi Aizawa, Takahiko Katoh, Yayoi Funakoshi, Shuichi Mihara |
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| Rok vydání: | 2011 |
| Předmět: |
Spirometry
Adult Male medicine.medical_specialty Vital capacity Vital Capacity Pulmonary function testing FEV1/FVC ratio Pulmonary Disease Chronic Obstructive Asian People Japan Internal medicine Forced Expiratory Volume Internal Medicine medicine Odds Ratio Humans Cumulative incidence Longitudinal Studies Aged COPD medicine.diagnostic_test business.industry Incidence (epidemiology) Incidence Smoking General Medicine Odds ratio respiratory system Middle Aged medicine.disease respiratory tract diseases Surgery business |
| Zdroj: | Internal medicine (Tokyo, Japan). 50(15) |
| ISSN: | 1349-7235 |
| Popis: | Background To date, there is very limited longitudinal data on COPD and incidence estimates in Japan. The aim of this study was to investigate the 12-year cumulative incidence of airflow obstruction (COPD) in Japanese males. Methods This study included 913 male subjects, aged 30-76 years, who underwent lung function tests at a medical check-up in 1994 (baseline), 1999, and 2006. The study group consisted of 263 persistent never smokers, 296 early quitters, 117 late quitters, and 237 persistent smokers without airflow obstruction at baseline. The 12-year cumulative incidence of airflow obstruction was estimated. The spirometric criteria for diagnosis of airflow obstruction were forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) of |
| Databáze: | OpenAIRE |
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