Effects of Aromatherapy on the Anxiety, Vital Signs, and Sleep Quality of Percutaneous Coronary Intervention Patients in Intensive Care Units

Table 1

Homogeneity test for general characteristics.

Categories	Aromatherapy group (𝑛=28)	Control group (𝑛=28)	𝜒^2	𝑃
	𝑛 (%)	𝑛 (%)
Gender
Male	18 (64.3)	24 (85.7)	3.43	.12*
Female	10 (35.7)	4 (14.3)
Age (yr)
≤60	8 (28.6)	15 (53.6)	3.89	.14
61–70	12 (42.8)	9 (32.1)
≥71	8 (28.6)	4 (14.3)
Marital status
Unmarried	0 (0)	1 (3.6)	1.02	1.0*
Married	28 (100)	27 (96.4)
Education
Lower than middle school	21 (75.0)	13 (46.4)
High school	6 (21.4)	10 (35.7)	7.44	.11
More than college	1 (3.6)	5 (17.9)
Exercise
Yes	6 (21.4)	14 (50.0)	8.06	.09
No	22 (78.6)	14 (50.0)
Amount of smoking (cigarettes per day)
None	20 (71.5)	18 (64.3)	4.08	.25
≤10	3 (10.7)	2 (7.1)
≥10, ≤20	3 (10.7)	1 (3.6)
≥20	2 (7.1)	7 (25.0)
Alcohol consumption
No	20 (71.4)	18 (64.3)	0.33	.57
Yes	8 (28.6)	10 (35.7)
Prior PCI
Yes	17 (60.7)	17 (60.7)	.00	1.0
No	11 (39.3)	11 (39.3)
Site of Insertion
Wrist site	13 (46.4)	15 (53.6)	.29	.79
Femoral site	15 (53.6)	13 (46.4)
Prior ICU admission
Yes	11 (39.3)	11 (39.3)	<.001	1.0
No	17 (60.7)	17 (60.7)
	Mean ± SD	Mean ± SD	𝑡	P
State anxiety	48.5±8.4	44.8±11.27	−1.37	.17
Trait anxiety	36.8±6.1	41.6±11.1	2.0	.05
Baseline Anxiety (VAS)	5.5±2.3	5.2±2.7	−0.43	.67
Quality of Sleep	53.0±7.8	55.6±15.4	0.79	.44
SBP	134.0±25.8	126.5±15.0	−1.34	.86
DBP	76.5±14.9	77.2±11.4	0.18	.86

∗: Fisher’s exact test; PCI: Percutaneous coronary intervention; ICU: Intensive Care Unit; Mean ± SD: Mean ± Standard Deviation; SBP: Systolic Blood Pressure; DBP: Diastolic Blood Pressure.