Factors influencing anxiety and depression among patients with digestive tract subepithelial lesions

Table 2 Sleep quality metrics: Study cohort vs Chinese norms

	Digestive tract SEL patients (n = 296)	Chinese norms (n = 112)	t	P value
Subjective sleep quality	0.94 ± 0.60	0.67 ± 0.88	3.538	0.0004
Sleep onset latency	1.18 ± 0.72	0.70 ± 0.98	5.412	< 0.0001
Sleep duration	0.93 ± 0.81	0.46 ± 0.68	5.455	< 0.0001
Sleep efficiency	0.99 ± 0.74	0.02 ± 0.73	11.859	< 0.0001
Sleep disturbances	1.00 ± 0.71	0.83 ± 0.61	2.240	0.026
Hypnotic medication use	0.19 ± 0.39	0.18 ± 0.63	0.193	0.402
Daytime dysfunction	1.02 ± 0.65	0.79 ± 0.94	2.799	0.005
Total PSQI score	6.25 ± 1.85	3.23 ± 3.12	11.99	< 0.0001

SEL: Subepithelial lesion; PSQI: Pittsburgh Sleep Quality Index.