Study on the Correlation among Sleep Quality, Cognitive Function, and Self-Management Ability in Hospitalized Elderly Patients with Coronary Heart Disease

Table 2

Correlation analysis between sleep quality and cognitive function in patients with CHD.

Variability	Statistics	Visual space and executive function	Name	Memory	Attention	Language	Abstract	Delayed memory	Orientation	Additional points	Cognitive total score
Dimension 1: sleep quality		0.060	0.009	0.033	-0.044	-0.075	0.041	0.098	-0.119	0.063	0.057
		0.373	0.899	0.625	0.518	0.268	0.546	0.149	0.078	0.352	0.397
Dimension 2: the time to fall asleep		-0.006	-0.010	-0.021	-0.007	-0.084	-0.042	0.034	-0.152	0.081	0.009
		0.933	0.885	0.752	0.914	0.216	0.535	0.613	0.024	0.234	0.889
Dimension 3: bedtime		-0.156	0.008	-0.076	0.024	-0.019	-0.237	-0.024	-0.272	0.055	-0.042
		0.020	0.910	0.259	0.719	0.780	≤0.001	0.727	≤0.001	0.419	0.537
Dimension 4: sleep efficiency		-0.003	-0.011	0.027	0.027	0.074	-0.205	-0.149	-0.131	-0.087	≤0.001
		0.962	0.875	0.686	0.686	0.273	0.002	0.027	0.052	0.200	0.998
Dimension 5: sleep disorders		-0.243	-0.244	-0.343	-0.288	-0.078	-0.211	-0.298	-0.443	0.109	-0.349
		≤0.001	≤0.001	≤0.001	≤0.001	0.251	0.002	≤0.001	≤0.001	0.108	≤0.001
Dimension 6: sleep medicine		-0.057	0.001	-0.117	0.036	-0.044	-0.137	-0.072	-0.240	-0.051	-0.065
		0.397	0.991	0.085	0.590	0.512	0.043	0.287	≤0.001	0.452	0.337
Dimension 7: daytime function		-0.227	-0.236	-0.211	-0.194	-0.180	-0.065	-0.201	-0.327	0.100	-0.219
		0.001	≤0.001	0.002	0.004	0.007	0.334	0.003	≤0.001	0.138	0.001
Total scores of sleep		-0.081	-0.082	-0.097	-0.072	-0.093	-0.165	-0.084	-0.325	0.074	-0.112
		0.232	0.225	0.153	0.291	0.167	0.014	0.216	≤0.001	0.273	0.002

Note: , .