Additional Table 3.

Heart rate variability bands measures in impaired/not-impaired children for social skills

		Not-impaired > 7	Impaired ≤ 7
Affect recognition	HF	7.69 ± 1.06 (n=32)	7.02 ± 1.23 (n=18)
	LF	7.42 ± 0.83	7.11 ± 0.85
	VLF	6.90 ± 0.76	6.61 ± 0.77
	%HF	56.6 ± 11.7*	48.1 ± 12.8*
Theory of mind	HF	7.63 ± 1.07 (n=40)	6.76 ± 1.28 (n=10)
	LF	7.41 ± 0.82	6.91 ± 0.87
	VLF	6.86 ± 0.73	6.59 ± 0.92
	%HF	55.3 ± 12.7	46.5 ± 11.8

The number in the brackets is the number of children with a not-impaired or with an impaired performance to the specific test, the number is the same for all the bands (It means: 32 not impaired and 18 impaired in the Affect Recognition, for all the HRV bands (HF, LF, VLF, %HF: 40 not impaired and 10 impaired in the Theory of mind for all the bands). HF: High-frequency band; LF: low-frequency; VLF: very low-frequency; %HF: normalized high-frequency.* non-zero (significant) difference between groups obtained by Bayesian regression (see Methods). Values are expressed as mean ± SD.