Computation of Nonlinear Parameters of Heart Rhythm Using Short Time ECG Segments

Table 6

Means (standard deviations) of HRV nonlinear parameters in different age groups.

Age groups, years of age
	8–13	14–17	18–21	22–35	36–55	Older than 55
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)
	5,96 (0,70)	6,06 (0,63)	5,11 (0,73)^*	4,92 (0,89)	4,37 (0,64)^*	3,78 (1,65)^*
	4,37 (0,52)	4,72 (0,51)^*	3,94 (0,50)^*	3,85 (0,57)	3,60 (0,64)^*	3,38 (0,95)^*

Statistically significant differences from the previous group (Scheffé’s test, P < 0.05).