The Effect of Copaiba Oil Odor on Anxiety Relief in Adults under Mental Workload: A Randomized Controlled Trial

Table 2

The STAI score change after CPO or control treatment.

	Control group (n = 11)		CPO group (n = 11)
	Pretest	Posttest	Pretest	Posttest
STAI score	87.1 ± 5.8	82.8 ± 5.9	78.7 ± 4.0	72.9 ± 3.6
S-AI score	37.9 ± 3.2	36.5 ± 3.7	33.5 ± 1.8	32.3 ± 1.6
T-AI score	49.2 ± 3.2	46.3 ± 3.1	45.2 ± 3.0	40.6 ± 3.1