Background
COPD
COPD, DISEASE, OBSTRUCTIVE PULMONARY DISEASE
Edited by: Weihong Chen, Huazhong University of Science and Technology, ChinaReviewed by: Carlos A. Torres-Duque, Fundación Neumológica Colombiana, Colombia; Xiangrong Zheng, Xiangya Hospital, Central South University, ChinaThis article was submitted to Environmental health and Exposome, a section of the journal Frontiers in Public Health†These authors have contributed equally to this workChronic Obstructive Pulmonary Disease (COPD) is a common and harmful disease that requires an effective tool to early screen high-risk individuals. Gansu has unique environments and customs, leading to the different prevalence and etiology of COPD from other regions. The association between altitude and COPD once attracted epidemiologists' attention. However, the prevalence in Gansu and the role of altitude are still unclarified.