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. 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
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
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
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 1st quartile (Q1) and 3rd quartile (Q3) are reported.