Table 3.

The salivary and urinary cortisol level according to floor impact sounds (FIS)

	Pre exposure	S (M)	C (M)	S	C	Post exposure	p-value
salivary cortisol (pg/ml)	1582.6 ± 756.5	1700.3 ± 742.8	1357.9 ± 575.7	1373.4 ± 475.6	1237± 384.2	1089.1 ± 344.6	0.003*
urinary cortisol (pg/ml)	8950.8 ± 1837.4	-	-	-	-	8914.5 ± 2044.9	0.889†

Abbreviation: S simple sound, C complex sound, M soundproof mattress, S (M) S with M, C (M) C with M

Unit: mean ± standard deviation

*p-value was calculated by repeated measures ANOVA

^† p-value was calculated by paired t-test