Table 4.

Pre- and post-test differences in cardiovascular parameters for all noises.

Difference		75dB	90dB
All values are presented as mean (standard error mean). SBP: systolic blood pressure; DBP: diastolic blood pressure; HR: heart rate. * p-value < 0.05 compared to exposure to background noise (< 55 dB) using Student's t-test.
SBP
	Male	0.9 (1.5)	4.6 (1.3) *
	Female	1.6 (1.2)	3.1 (1.1) *
	Total	1.3 (1.0)	3.9 (0.9) *
DBP
	Male	1.6 (1.3)	4.2 (1.0) *
	Female	1.5 (0.8)	1.2 (0.9)
	Total	1.6 (0.8) *	2.7 (0.7) *
HR
	Male	0.4 (0.8)	-0.6 (0.8)
	Female	-1.1 (0.8)	-0.4 (0.9)
	Total	-0.4 (0.6)	-0.5 (0.6)