A Study of in Elderly Patients With COPD on Long-term Home Oxygen Therapy Combined With MCI

The goal of this clinical trial is to learn The effects of a health education programme based on BCW theory on elderly patients with chronic obstructive pulmonary disease and mild cognitive impairment The main questions it aims to answer are:Researchers will compare the effectiveness of this educational intervention with the conventional education group to see if the intervention programme can change patients\' long-term home oxygen therapy adherence.The intervention phase lasts for 3 months, with sessions lasting 30 to 40 minutes, conducted twice a month. The content of both sessions is identical, resulting in a total of 6 sessions.