Essential Oil Inhalation on Blood Pressure and Salivary Cortisol Levels in Prehypertensive and Hypertensive Subjects

Table 6

The effects of essential oil inhalation on salivary cortisol (μg/dL) among the groups.

Group	Pretest	Posttest	Difference; (posttest and pretest)	𝐹	𝑃
Aromatherapy; (𝑛=28)	0.16 ± 0.09	0.14 ± 0.05	−0.02 ± 0.06^a
Placebo; (𝑛=27)	0.12 ± 0.06	0.16 ± 0.09	0.04 ± 0.09^b	4.69	.012
Control; (𝑛=28)	0.11 ± 0.06	0.13 ± 0.07	0.02 ± 0.08^b

Values are expressed as mean ± standard deviation.
Different superscripts (a, or b) indicate a significant difference (Tukey’s test; 𝑃<.05).