Xueyan Feng

Oct 28, 2024 | respiratory-research.biomedcentral.com | Jiajun Zhang |Di Zhao |Lili Zhang |Xueyan Feng |Beibei Li |Hui Dong | +5 more

We collected COPD patients of Han Chinese ethnicity who visited the outpatient departments of General Hospital of Ningxia Medical University, Yinchuan in the northern Ningxia Hui Autonomous Region, China. These patients were collected between January 1, 2021, and January 31, 2024. Additionally, Han Chinese individuals who underwent physical examinations at the Physical Examination Center of General Hospital of Ningxia Medical University during the same period served as the healthy control group.