Table 1.

Changes of systolic and diastolic blood pressure in times and groups

	Pre	Post	Wilcoxon test a)
			Z (P)
Systolic blood pressure
Ylang-Ylang group	115.40± 2.96	97.87± 2.12	−3.436 (0.001)
Control group	113.79± 2.82	111.14± 3.24	−1.444 (0.149)
Mann-Whitney U tes b) Z (P)		−0.515 (0.606)	−2.799 (0.005)
Diastolic blood pressure
Ylang-Ylang group	66.00± 2.48	59.20± 1.65	−2.375 (0.018)
Control group	66.57± 2.42	64.07± 2.89	−1.382 (0.167)
Mann-Whitney U test b) Z (P)		−0.111 (0.911)	−0.790 (0.429)

All data represents mean± standard error mean (SEM).

^a)Represents the statistical analysis method between pre and post.

^b)Means the statistical analysis method between Ylang-Ylang group and control group.