Occurrence of Sleep Disorders in Elderly Patients with Chronic Obstructive Pulmonary Disease and its Correlation with Cognitive Impairment
Objective:To observe the occurrence of sleep disorders in elderly patients with chronic obstructive pulmonary disease(COPD)and its correlation with cognitive impairment.Methods:A total of 100 elderly patients with COPD admitted to the hospital from January 2021 to December 2022 were selected.According to the Pittsburgh Sleep Quality Index(PSQI)score,the subjects were divided into sleep disorder group and non-sleep disorder group.Cognitive function in the two groups was evaluated with the Mini Mental State Examination(MMSE).Baseline data and MMSE scores of the two groups were taken as independent variables.Univariate analysis and multivariate logistic analysis were conducted to identify the influencing factors of sleep disorders.The correlation between PSQI score and MMSE score was analyzed.Results:Of the 100 elderly patients with COPD,32(32％)had sleep disorders.Compared with the non-sleep disorder group,the sleep disorder group had higher PSQI scores.The total PSQI score of the sleep disorder group was(7.48±1.81),higher than(6.02±0.74)of the non-sleep disorder group(P＜0.05).Univariate analysis showed that the MMSE scores of different dimensions and the total MMSE score of the sleep disorder group were lower than those of the non-sleep disorder group.The proportions of patients with course of disease ≥ 10 years and dyspnea grade ≥ 3 were higher than those in the non-sleep disorder group(P＜0.05).Multivariate logistic regression analysis showed that course of disease,dyspnea grade and MMSE score were independent risk factors for sleep disorders in patients with COPD(P＜0.05).Pearson correlation analysis found that PSQI score was negatively correlated with MMSE score in patients with COPD,while the PSQI score is positively correlated with the course of the disease and the grading of dyspnea(P＜0.05).Conclusion:The risk of sleep disorders in elderly patients with COPD is high.The course of disease,dyspnea grade,and MMSE score are influencing factors of sleep disorders.In addition,the patients'sleep quality is closely related to the degree of cognitive impairment,which deserves attention in clinical practice.
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