. Author manuscript; available in PMC: 2017 Dec 1.

Published in final edited form as: Clin Auton Res. 2016 Aug 4;26(6):423–432. doi: 10.1007/s10286-016-0375-5

Table 4.

Results of absolute heart rate variability in children with autism spectrum disorder (ASD) and typically developing children (TD) averaged over the first 4 sleep cycles and stages of Wake (W), non-REM (N1, N2, N3) and REM sleep.

		ASD					TD

Variable	Stages	Mean	SD	Median	Q1	Q3	Mean	SD	Median	Q1	Q3	p_age	p_diag
LF (msec²)	W	1630.6	1848.2	1003.7	576.4	1890.1	1304.6	1089.3	851.6	404.0	2056.9	0.198	0.577
LF (msec²)	N1	1740.8	1375.7	1780.2	448.8	3013.1	2240.2	2847.2	966.0	252.6	5502.0	0.028	0.348
	N2	1080.9	1157.4	619.8	379.2	1575.9	1398.7	1319.2	1000.4	531.1	1810.9	0.660	0.126
	N3	519.0	473.6	339.1	186.1	653.5	1030.2	1587.4	520.9	149.4	1287.2	0.590	0.029
	REM	1104.2	972.5	808.2	512.0	1573.4	1441.0	1105.7	1167.6	537.4	2189.5	0.005	0.042
HF (msec²)	W	1347.9	1794.9	847.9	345.7	1239.8	1498.2	1687.5	877.6	359.3	2348.5	0.187	0.612
HF (msec²)	N1	3343.0	2744.2	2974.7	1122.0	5748.2	2407.8	3388.8	794.8	126.9	6301.9	0.285	0.801
	N2	2086.5	2631.8	1124.9	566.0	2186.6	2782.2	2730.1	1630.6	594.0	4497.9	0.642	0.123
	N3	1382.2	1739.9	705.8	311.2	1527.3	2312.7	2601.5	1303.7	376.7	3607.4	0.362	0.031
	REM	1432.7	1985.1	703.4	304.2	1383.9	2427.7	2921.4	1432.7	518.5	2853.4	0.875	0.023
TP (msec²)	W	4828.2	5163.0	3479.7	1182.8	4389.4	4476.7	4068.1	2824.5	1197.0	6884.4	0.144	0.959
TP (msec²)	N1	8452.8	5418.0	9697.0	3205.5	13077.9	6598.9	7593.8	2380.3	2050.9	15365.4	0.010	0.858
	N2	4252.1	4658.3	2504.7	1438.9	5691.3	5337.9	3965.4	4332.5	1861.9	8305.1	0.896	0.130
	N3	2335.5	2429.4	1318.1	769.1	3041.2	3963.7	4278.5	2749.7	818.9	5607.6	0.432	0.017
	REM	3928.2	3352.9	2646.3	1644.9	5382.1	5473.0	4247.1	4207.7	2205.3	8609.1	0.152	0.017

LF low frequency power, HF high frequency power, TP total power of heart rate variability

Mean, standard deviation (SD), median (Median) values, and 1^st quartile (Q1) and 3^rd quartile (Q3) are reported.