Sleep Quality and Anxiety and Depression in Patients with Chronic Obstructive Pulmonary Disease and Their Influencing Factors: a Multicenter Cross-sectional Study

Background Respiratory problems in chronic obstructive pulmonary disease (COPD) patients are prone to poor sleep quality, anxiety and depression, but they are often ignored by medical staff and patients themselves. Understanding the sleep quality, anxiety and depression symptoms of patients with COPD and their influencing factors can help to improve the quality of life of patients, however, there are few relevant studies. Objective To investigate the sleep quality, anxiety and depression of patients with COPD and explore the influencing factors. Methods Convenience sampling was used to recruit COPD patients who visited the Department Respiratory Diseases and Critical Care Medicine of seven hospitals in Anhui Province from August to November 2022. Demographic characteristics, dyspnea grade, airflow restriction severity, risk of malnutrition, physical activity level, vaccination, and acute exacerbations in the last 1 year were collected. The Pittsburgh Sleep Quality Index (PSQI) and the Hospital Anxiety and Dep