Essential Oil Inhalation on Blood Pressure and Salivary Cortisol Levels in Prehypertensive and Hypertensive Subjects
Table 3
Subgroup analysis of home SBP after inhalation.
Group
Pretest
Posttest
Difference (posttest and pretest)
Kruskal-Wallis
SBP
Aromatherapy ()
130.8 ± 5.65
125.8 ± 6.00
−4.96 ± 1.89a
Prehypertension
Placebo ()
130.0 ± 7.91
130.3 ± 8.10
0.33 ± 1.62b
22.479
<.001
Control ()
130.8 ± 7.45
131.4 ± 7.37
0.55 ± 2.35b
Aromatherapy ()
133.5 ± 5.54
129.1 ± 5.14
−4.47 ± 2.00a
Hypertension
Placebo ()
135.2 ± 8.42
136.5 ± 8.69
1.35 ± 1.64b
28.615
<.001
Control ()
135.5 ± 5.66
136.3 ± 5.94
0.78 ± 1.68b
DBP
Aromatherapy ()
84.1 ± 5.00
83.2 ± 5.30
−0.95 ± 1.67
Prehypertension
Placebo ()
82.9 ± 6.47
83.0 ± 6.98
0.08 ± 1.79
2.511
.285
Control ()
82.9 ± 6.88
82.7 ± 6.83
−0.23 ± 1.73
Aromatherapy ()
87.2 ± 5.58
85.7 ± 5.43
−1.45 ± 1.38a
Hypertension
Placebo ()
84.4 ± 7.97
84.7 ± 8.73
0.30 ± 2.08b
8.223
.016
Control ()
87.0 ± 6.63
86.7 ± 7.12
−0.31 ± 1.62b
Values are expressed as mean ± standard deviation; Different superscripts (a, or b) indicate a significant difference (Tukey’s test; ); BP: blood pressure.