Sertraline plus psychological intervention for acute myocardial infarction with anxiety-depression comorbidity: Cardiac function, adverse mood, and resilience impacts

Table 3 Sleep quality comparison

Indicators	Control group (n = 60)	Research group (n = 73)	Z	P value
Sleep quality (points)
Before intervention	2.00 (1.00, 2.75)	1.00 (1.00, 3.00)	-1.013	0.311
After intervention	1.00 (1.00, 2.00)a	1.00 (0.00, 1.00)b	-5.263	< 0.001
Sleep latency (points)
Before intervention	2.00 (1.00, 2.75)	2.00 (1.00, 2.00)	-0.563	0.573
After intervention	1.00 (1.00, 2.00)a	1.00 (0.00, 1.00)b	-2.835	0.005
Sleep duration (points)
Before intervention	2.00 (1.00, 2.00)	1.00 (1.00, 2.00)	-1.424	0.155
After intervention	1.00 (1.00, 2.00)a	1.00 (1.00, 1.00)b	-2.494	0.013
Sleep efficiency (points)
Before intervention	2.00 (1.00, 2.00)	2.00 (1.00, 2.00)	-0.245	0.807
After intervention	1.00 (1.00, 2.00)a	1.00 (1.00, 1.50)b	-2.039	0.041
Sleep disturbances (points)
Before intervention	2.00 (1.00, 2.00)	2.00 (1.00, 3.00)	-0.349	0.727
After intervention	1.00 (1.00, 2.00)a	1.00 (1.00, 1.50)b	-2.319	0.020
Hypnotic drug use (points)
Before intervention	2.00 (1.00, 3.00)	2.00 (1.00, 2.00)	-0.451	0.652
After intervention	1.00 (1.00, 2.00)a	1.00 (1.00, 1.50)b	-2.248	0.025
Daytime dysfunction (points)
Before intervention	2.00 (1.25, 2.00)	2.00 (1.00, 2.00)	-1.284	0.199
After intervention	2.00 (1.00, 2.00)a	1.00 (1.00, 2.00)b	-2.646	0.008

^aP < 0.05 (intra-group comparison vs pre-intervention).

^bP < 0.01 (intra-group comparison vs pre-intervention).