Table 4.

Descriptive statistics

	Skewness	Kurtosis	Mean	Standard deviation
RSAP-B (ln(ms2))	−0.321	0.991	6.92	1.26
P2T (ms)	2.535	9.844	99.51	68.41
HF (ms2)	4.73	27.75	1126.31	1656.10
Respiration Rate (Hz)	−0.386	1.248	0.27	0.05
Tidal volume (mL)	1.536	2.605	477.25	211.59
Heart period (ms)	−0.120	0.218	956.27	132.81
Heart rate (bpm)	1.127	2.133	64.04	9.67

N = 65.