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

Table 4

The effects of essential oil inhalation on Home BP for 4 weeks.

		SBP (mm Hg)				DBP (mm Hg)
		Aromatherapy; (𝑛=28)	Placebo; (𝑛=27)	Control.; (𝑛=28)	𝐹  (𝑃)	Aromatherapy; (𝑛=28)	Placebo; (𝑛=27)	Control.; (𝑛=28)	𝐹  (P)
Screening; office BP		140.6 ± 6.2	141.0 ± 6.2	140.1 ± 6.9	0.12 (.88)	87.4 ± 7.5	87.0 ± 8.3	86.5 ± 7.9	0.09 (.91)
Home BP
1stweek
(Tuesday)	Before	136.6 ± 8.8	134.0 ± 9.3	135.1 ± 10.5	0.52 (.60)	87.9 ± 6.5	84.8 ± 9.3	87.0 ± 9.0	1.04 (.36)
	After	131.8 ± 8.3	135.7 ± 9.3	136.3 ± 9.1	2.14 (.125)	86.6 ± 6.4	84.5 ± 10.5	86.0 ± 8.1	0.43 (.65)
(Friday)	Before	134.3 ± 8.6	135.8 ± 12.0	133.4 ± 7.8	0.44 (.65)	87.3 ± 8.5	84.5 ± 9.1	85.3 ± 8.7	0.78 (.46)
	After	128.3 ± 7.2^a	136.3 ± 10.3^b	134.9 ± 8.8^b	6.42 (.003)	85.5 ± 6.7	84.9 ± 9.0	86.1 ± 9.1	0.14 (.87)
2ndweek
(Tuesday)	Before	133.6 ± 10.3	132.3 ± 11.4	131.4 ± 9.9	0.31 (.74)	86.6 ± 7.3	83.9 ± 8.1	84.2 ± 8.3	1.03 (.36)
	After	128.6 ± 8.4	133.4 ± 11.8	132.6 ± 9.3	1.86 (.16)	86.6 ± 5.6	84.3 ± 8.9	83.8 ± 7.8	1.16 (.32)
(Friday)	Before	133.4 ± 5.4	132.0 ± 9.6	134.5 ± 9.0	0.64 (.53)	85.7 ± 6.6	83.8 ± 7.7	85.3 ± 8.9	0.47 (.63)
	After	127.8 ± 6.4^a	133.7 ± 9.6^b	134.9 ± 9.4^b	5.50 (.006)	84.2 ± 7.2	83.9 ± 7.7	85.2 ± 9.3	0.19 (.83)
3rdWeek
(Tuesday)	Before	129.1 ± 6.8	132.8 ± 12.4	132.2 ± 9.2	1.16 (.32)	85.3 ± 6.6	83.1 ± 9.6	83.7 ± 9.1	0.51 (.60)
	After	125.6 ± 7.3^a	134.2 ± 11.3^b	132.1 ± 9.4^b	6.15 (.003)	83.5 ± 7.2	82.4 ± 10.5	84.6 ± 9.4	0.42 (.66)
(Friday)	Before	129.3 ± 8.2	132.6 ± 9.6	133.6 ± 9.1	1.77 (.18)	84.4 ± 7.7	82.9 ± 8.7	85.2 ± 7.9	0.57 (.57)
	After	125.7 ± 6.0^a	132.3 ± 9.7^b	133.7 ± 10.1^b	6.54 (.002)	83.5 ± 6.3	83.6 ± 8.7	83.4 ± 8.6	0.002 (1.00)
4th week
(Tuesday)	Before	131.4 ± 6.6	134.2 ± 10.4	132.2 ± 8.9	0.73 (.49)	83.9 ± 6.8	83.8 ± 9.8	83.7 ± 8.3	0.003 (1.00)
	After	126.4 ± 6.5^a	135.4 ± 12.1^b	132.3 ± 7.9^b	7.00 (.002)	82.5 ± 7.8	84.9 ± 11.1	83.6 ± 7.5	0.45 (.61)
(Friday)	Before	130.4 ± 8.1	132.5 ± 12.4	133.2 ± 9.5	0.56 (.57)	84.8 ± 6.9	83.9 ± 11.7	85.2 ± 8.0	0.14 (.87)
	After	126.3 ± 6.3^a	132.9 ± 12.9^b	134.0 ± 8.0^b	5.51 (.006)	83.8 ± 7.8	83.9 ± 10.8	84.8 ± 9.2	0.11 (.90)
𝐹  (𝑃)		Time: 0.70 (.67); Group: 8.25 (.001); G*T: 1.24 (.25)				Time: 0.84 (.56); Group: 0.09 (.91); G*T: 0.92 (.54)

Mean ± SD: mean ± standard deviation. *Repeated measures of ANOVA. Different superscripts (a, or b) indicate a significant difference (Tukey’s test; 𝑃<.05).