The Effects of Lavender and Citrus aurantium on Anxiety and Agitation of the Conscious Patients in Intensive Care Units: A Parallel Randomized Placebo-Controlled Trial

Table 1

Mean and standard deviation of the state anxiety of research units in three groups of lavender, Citrus aurantium, and placebo.

Group	Lavender		Citrus aurantium		Placebo
Variable	Mean	SD	Mean	SD	Mean	SD
Before intervention	54.88	6.29	53.92	7.96	57.78	8.28
Immediately after intervention	52.88	4.74	52.26	6.55	57.72	8.20
One hour after the intervention	54.70	4.97	53.66	7.11	57.14	7.96
Three hours after the intervention	50.26	6.05	50.10	7.10	56.62	8.02
Source of change	Sum of squares		Degree of freedom		value	Effect size
Group	681.98		2	9.04	<0.001	0.11
Time	558.43		1.79	20.51	<0.001	0.12
	358.72		3.58	6.59	<0.001	0.08
Preintervention anxiety score	10487.58		1	277.94	<0.001	0.66
Error	5509.14		146