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哮喘是一种常见的呼吸系统疾病,但它的流行病学描述仍不完善。目前调查的目的是从纵向的流行病学研究中分析数据,以调查成人支气管哮喘患者每年的肺功能下降情况。 研究对象和方法参与这个分析的样本包含从哥本哈根市随机选择的10592位20～90岁的受检者(4824例男性),并随访5年时间。 FEV_1和FVC用一种电子呼吸量测定器(N-403型)测定,每个受检者至少需要测量二次差异小于5％的FEV_1和FVC值,其中最好的FEV_1值和FVC值用于诊断。 结果及讨论 在男性受检者中哮喘病的流行率是3.7％(n=177),女性是3.6％(n=219)。在首次检查中,报告患有哮喘的受检者肺功能检测值普遍低于无
Asthma is a common respiratory disease, but its epidemiological description is still incomplete. The purpose of the current survey is to analyze the data from longitudinal epidemiological studies to investigate the annual decline in lung function in adult patients with bronchial asthma. PARTICIPANTS AND METHODS Samples participating in this analysis included 10592 subjects (4824 men) aged 20-90 years randomly selected from the city of Copenhagen and followed up for 5 years. FEV_1 and FVC were measured with an electronic spirometer (Model N-403), with each subject measuring at least FEV_1 and FVC values with a second-to-fifth difference of less than 5%, with the best FEV_1 values and FVC values being used for diagnosis. Results and Discussion The prevalence of asthma in male subjects was 3.7% (n = 177) and in females 3.6% (n = 219). In the first examination, the lung function of the reported subjects with asthma was generally lower than without