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支气管哮喘(以下简称哮喘)是临床上比较常见的呼吸系统慢性疾患。近期流行病学调查资料显示,哮喘是呼吸系统慢性疾病中发病率递增速度较快的一种,在全球范围内,哮喘的花费要远高于结核病和艾滋病的总和。目前全世界有哮喘患者至少3亿人,我国哮喘发病率为1%~5%,约有3000万哮喘患者;老年人哮喘的患病率呈上升趋势。我国富裕地区患病率较高,城市地区患病率高于农村。
Bronchial asthma (hereinafter referred to as asthma) is a more common clinical chronic respiratory diseases. Recent epidemiological survey data show that asthma is a chronic respiratory disease incidence rate of a rapid increase in a global scale, the cost of asthma is much higher than the sum of tuberculosis and AIDS. At present, there are at least 300 million asthma patients in the world, and the incidence of asthma in China is 1% -5%, with about 30 million asthma patients. The prevalence of asthma in the elderly is on the rise. The prevalence rate in the affluent areas of our country is higher, and the prevalence rate in urban areas is higher than in rural areas.