Table 2.

Spectral parameters’ dependence on the time and the group of patients.

Parameter	Variable	Value	SE	p-value
LF-RRI	Intercept	1391.0	332.6	0.0001
	Group II vs. group I	311.6	525.9	ns
	Group III vs. group I	−642.8	493.3	ns
	24-h TSD vs. baseline	−76.5	360.3	ns
	28-h TSD vs. baseline	399.1	360.3	ns
	32-h TSD vs. baseline	−387.2	360.3	ns
	Group II: 24-h TSD	−547.1	569.7	ns
	Group III: 24-h TSD	126.8	534.4	ns
	Group II: 28-h TSD	−760.2	569.7	ns
	Group III: 28-h TSD	−142.1	534.4	ns
	Group II: 32-h TSD	−51.4	569.7	ns
	Group III: 32-h TSD	570.1	534.4	ns
HF-RRI	Intercept	1189.4	583.6	0.0448
	Group II vs. group I	290.7	922.8	ns
	Group III vs. group I	−752.4	865.7	ns
	24-h TSD vs. baseline	−77.8	656.5	ns
	28-h TSD vs. baseline	1572.4	656.5	0.0189
	32-h TSD vs. baseline	−150.1	656.5	ns
	Group II: 24-h TSD	−228.3	1037.9	ns
	Group III: 24-h TSD	239.4	973.7	ns
	Group II: 28-h TSD	−1987.4	1037.9	0.0591
	Group III: 28-h TSD	−1401.3	973.7	ns
	Group II: 32-h TSD	161.1	1037.9	ns
	Group III: 32-h TSD	509.9	973.7	ns

Bolded values = values which are statistically significant, p < 0.05.