[Table/Fig-4]:

Comparison of domain and total scores of Pittsburgh Sleep Quality Index in intervention and control groups between before and after intervention.

Domains of PSQI	Intervention group		p-value	Control group		p-value
	Before intervention	After intervention		Before intervention	After intervention
	Mean (±SD)	Mean (±SD)		Mean (±SD)	Mean (±SD)
Subjective sleep quality	2.00 (0.91)	1.03 (1.05)	0.0009	1.20 (0.96)	1.73 (1.99)	0.096
Sleep latency	2.33 (0.92)	1.07 (0.92)	0.0009	1.67 (0.99)	1.47 (0.81)	0.237
Sleep duration	2.13 (1.07)	1.28 (1.03)	0.002	1.33 (1.06)	1.47 (1.00)	0.429
Sleep efficiency	2.13 (1.25)	1.21 (1.17)	0.008	1.30 (1.34)	1.30 (1.29)	0.903
Sleep disturbance	1.37 (0.49)	0.97(0.32)	0.002	1.33 (0.547)	1.33 (0.547)	1.00
Use of sleep medication	0.5 (1.13)	0.28 (0.84)	0.180	0.77 (1.27)	0.73 (1.25)	0.705
Daytime dysfunction	1.70 (1.088)	1.10(0.939)	0.002	1.73 (1.01)	1.77 (0.89)	0.827
Global PSQI Score	12.7 (4.434)	7.03 (4.355)	0.0009	9.33 (4.686)	9.57 (4.584)	0.704