Sleep Promotion among Critically Ill Patients: Earplugs/Eye Mask versus Ocean Sound—A Randomized Controlled Trial Study

Table 3

Sleep quality before administration of interventions (N = 60).

Group	Mean ± SD	Md	SEMD	t value	^b value
Group 1	25.23 ± 4.77	-0.74	1.29	0.56	0.57
Group 2	25.97 ± 5.26

^b- independent t-test, ‘t’(58) = 1.67.