Table 3. AVNN and LF/HF mean values and SD divided into the three stress events categorizations (N = 30).

	AVNN (milliseconds)	LF/HF
	Mean ± SD	Mean ± SD
Accidents	811.39 ± 145.65	2.85 ± 1.56*
Pre-hospitalar assistance	830.24 ± 142.29	1.92 ± 0.68*
Fires	823.01 ± 134.05	2.51 ± 0.98*

Notes.

^*Significant differences between conditions “accidents”, “pre-hospital assistance” and “fires”; Kruskal-Wallis, two-tailed; p < 0.01.