Three-Dimensional Poincaré Plot Analysis for Heart Rate Variability

Table 2

The means and standard deviations of SD1, SD2, S, EI, GI, PI, and LDE.

Indicator	nsr2db	Cudb	Mitdb	Sddb	Szdb
SD1	101.41 ± 0.64	92.73 ± 25.20	103.33 ± 3.82	105.29 ± 0.53	104.72 ± 0.67
SD2	107.06 ± 1.02	113.79 ± 12.09	105.38 ± 2.03	101.55 ± 0.42	102.65 ± 0.31
S
EI
GI
PI
LDE	1.75 ± 0.01	0.07 ± 0.027	0.43 ± 0.06	1.41 ± 0.01	0.85 ± 0.06