Correlation between self-management, psychological cognitive impairment, and quality of life in elderly chronic obstructive pulmonary disease patients

Table 4 Correlation between self-management level, cognitive frailty and total score of quality-of-life level in elderly chronic obstructive pulmonary disease patients

Variable	Total score of self-management	Onset of cognitive impairment	Simplified Weakness Score	Simplified Mental State Rating	Clinical Dementia Rating Scale Score	Total score of quality-of-life level
Total score of self-management level	1
Onset of cognitive impairment	-0.589c	1
Simplified Weakness Score	-0.373c	0.540c	1
Simplified Mental State Rating	0.247c	-0.126a	-0.254c	1
Clinical Dementia Rating Scale Score	-0.116a	-0.077	0.165b	-0.860c	1
Total score of quality-of-life level	-0.410c	0.345c	0.404c	-0.609c	0.592c	1

^aP< 0.05.

^bP< 0.01.

^cP< 0.001.