慢性阻塞性肺病(Chronic obstructive pulmonarydisease,COPD)在中国是一种常见的疾病,患病率为8.2%(95%CI,7.9~8.6)[1],世界卫生组织预言COPD到2020年将成为世界上第三位死亡原因。COPD是一种以气流受限为特征的疾病,病变不仅累及肺部,还具有全身炎症特征,可引起全身性疾病,包 Chronic obstructive pulmonary disease (COPD) is a common disease in China with a prevalence of 8.2% (95% CI, 7.9-8.6) [1]. The World Health Organization predicts that COPD will become the world by 2020 On the third cause of death. COPD is a disease characterized by airflow limitation, which affects not only the lung but also systemic inflammatory features that can cause systemic disease, including