Effects of cognitive behavioral therapy-based group intervention on burnout and anxiety symptoms in operating room nurses

Table 2 Comparison of burnout levels between the two groups at different time points¹

Indicator	Group	Baseline	Post-intervention	3 months post-intervention
Emotional exhaustion
	Intervention group (n = 46)	20.8 ± 3.6	14.2 ± 3.8	13.5 ± 3.5
	Control group (n = 44)	21.2 ± 3.4	21.5 ± 3.5	21.8 ± 3.6
	t value	-0.445	-8.026	-9.517
	P value	0.658	< 0.001	< 0.001
Depersonalization
	Intervention group (n = 46)	15.3 ± 2.9	10.6 ± 2.7	10.1 ± 2.6
	Control group (n = 44)	15.7 ± 3.1	15.9 ± 3.0	16.2 ± 3.1
	t value	-0.525	-7.389	-8.366
	P value	0.602	< 0.001	< 0.001
Professional efficacy
	Intervention group (n = 46)	18.4 ± 4.2	24.8 ± 4.5	25.6 ± 4.3
	Control group (n = 44)	18.9 ± 4.0	18.6 ± 4.2	18.3 ± 4.1
	t value	-0.48	5.597	6.786
	P value	0.633	< 0.001	< 0.001
MBI-GS total score
	Intervention group (n = 46)	53.7 ± 8.4	36.0 ± 7.9	34.0 ± 7.5
	Control group (n = 44)	54.0 ± 8.1	54.8 ± 8.3	55.7 ± 8.5
	t value	-0.144	-9.185	-10.754
	P value	0.886	< 0.001	< 0.001

¹Maslach Burnout Inventory-General Survey total score is calculated by reverse scoring the professional efficacy dimension and adding it to emotional exhaustion and depersonalization dimension scores; P-values have been Bonferroni corrected (corrected α = 0.05/3 = 0.0167); analyzed using an independent samples t-test.

MBI-GS: Maslach Burnout Inventory-General Survey.