TABLE 2.

The difference among stages within each group and between two groups.

Stage	Compared with	nLF			nHF			RR
		P-valuec		P-valued	P-valuec		P-valued	P-valueb		P-valuea
		AG n = 60	SG n = 60		AG n = 60	SG n = 60		AG n = 60	SG n = 60
T1	T2	0.85	0.37	0.41	0.41	0.23	0.86	0.37	0.67	0.31
	T3	0.46	0.67	0.77	<0.01	0.63	0.04	0.81	0.13	0.32
	T4	0.72	0.98	0.79	0.03	0.83	0.05	0.88	0.74	0.98
	T5	0.54	0.67	0.86	0.01	0.76	0.03	0.99	0.76	0.62
	T6	0.08	0.04	0.81	<0.01	0.99	<0.01	0.72	0.32	0.62
	T7	0.17	0.80	0.45	<0.01	0.81	0.04	0.95	0.90	0.95
	T8	0.31	0.28	0.99	<0.01	0.71	<0.01	0.49	0.92	0.93
T2	T3	0.47	0.42	0.98	<0.01	0.81	0.02	0.53	0.25	0.18
	T4	0.71	0.68	0.95	0.04	0.38	0.03	0.30	0.95	0.58
	T5	0.52	0.42	0.90	0.02	0.28	0.01	0.39	0.34	0.22
	T6	0.08	0.03	0.86	<0.01	0.50	<0.01	0.82	0.17	0.21
	T7	0.17	0.47	0.64	0.02	0.69	0.03	0.57	0.51	0.27
	T8	0.31	0.10	0.64	<0.01	0.72	<0.01	0.94	0.52	0.40
T3	T4	0.63	0.74	0.98	0.48	0.23	0.95	0.83	0.31	0.49
	T5	0.92	0.98	0.94	0.95	0.18	0.60	0.82	0.95	0.84
	T6	0.49	0.32	0.91	0.26	0.31	0.16	0.42	0.59	0.71
	T7	0.50	0.92	0.57	0.80	0.66	0.70	0.76	0.55	0.71
	T8	0.91	0.74	0.75	0.25	0.84	0.26	0.34	0.99	0.57
T4	T5	0.72	0.69	0.94	0.54	0.91	0.55	0.80	0.11	0.29
	T6	0.19	0.17	0.93	0.04	0.71	0.09	0.22	0.07	0.73
	T7	0.32	0.80	0.65	0.35	0.41	0.63	0.67	0.52	0.88
	T8	0.66	0.45	0.77	0.02	0.13	0.11	0.13	0.28	0.89
T5	T6	0.31	0.37	0.99	0.13	0.54	0.26	0.25	0.45	0.60
	T7	0.46	0.93	0.59	0.72	0.34	0.92	0.47	0.45	0.20
	T8	0.99	0.75	0.83	0.20	0.26	0.53	0.20	0.80	0.25
T6	T7	0.93	0.36	0.48	0.34	0.39	0.25	0.63	0.09	0.44
	T8	0.23	0.45	0.79	0.98	0.46	0.72	0.90	0.15	0.27
T7	T8	0.39	0.68	0.38	0.38	0.86	0.48	0.55	0.67	0.73

^aMann Whitney U-test, ^bWilcoxon signed rank sum test, ^cpaired t-test, ^dT-test; LF, low-frequency power; HF, high-frequency power; RR, respiratory rate.