Effects of acupressure on sleep quality and anxiety of patients with second- or third-degree burns: a randomized sham-controlled trial

Table 2 Comparison of sleep quality and anxiety in the study groups

Variables		Experimental group (n = 36)	Control group (n = 36)	Between-group P-value^*
Variables		Mean ± SD	Mean ± SD	Between-group P-value^*
Sleep quality¹	Before intervention	23.27 ± 1.99	23.19 ± 2.10	0.864
	After intervention	14.75 ± 2.08	24.61 ± 1.97	< 0.001
	Within-group P-value^**	< 0.001	0.006
Anxiety²	Before intervention	59.30 ± 5.62	60.50 ± 5.38	0.360
	After intervention	35.11 ± 3.80	58.72 ± 3.55	< 0.001
	Within-group P-value^**	< 0.001	0.128

All values have been expressed as mean ± standard deviation (SD).
¹ St. Mary’s Hospital Sleep Questionnaire: the total score ranges from 8–32, lower scores indicating higher sleep quality.
² Spielberger’s State-Trait Anxiety Inventory for State Anxiety: the total score ranges from 20–80, lower scores representing lower anxiety levels.
^* Independent samples t-test
^** Paired samples t-test

ISSN: 2662-7671