Table 3.

Descriptions of the 20 most frequently selected features using the Pearson correlation coefficient features selection method. Scale in the frequency band feature category refers to the level of coarse-graining procedure (further described in the “Methods” section). Significance evaluated with paired sample t test corrected for 20 comparisons. Parameters that survived Bonferroni correction are in bold

	Feature			HR-ASD (mean ± std)	HR-noASD (mean ± std)	p value	% Iterations selected
	Channel	Frequency	Measure
6-month dataset	F3	1‑3.9 Hz	AppE	0.815 ± 0.08	0.76 ± 0.037	< 0.0025	100
	C3	1‑3.9 Hz	Power	0.038 ± 0.019	0.025 ± 0.012	< 0.05	100
	C3	7.8‑15.6 Hz	AppE	1.145 ± 0.035	1.115 ± 0.033	< 0.05	100
	Fz	15.6‑31.2 Hz	Power	0.018 ± 0.008	0.013 ± 0.006	< 0.05	100
	Fz	3.9‑7.8 Hz	Power	0.017 ± 0.007	0.012 ± 0.005	< 0.01	100
	Pz	15.6‑31.2 Hz	Power	0.029 ± 0.016	0.02 ± 0.009	< 0.01	100
	C3	3.9‑7.8 Hz	Power	0.026 ± 0.013	0.018 ± 0.009	< 0.05	98.1
	F3	7.8‑15.6 Hz	LZW	1.59 ± 0.027	1.563 ± 0.036	< 0.05	98.1
	Fz	1‑3.9 Hz	Power	0.032 ± 0.017	0.022 ± 0.01	< 0.05	98.1
	Fz	7.8‑15.6 Hz	Power	0.014 ± 0.007	0.01 ± 0.004	< 0.05	98.1
	Pz	31.2‑62.2 Hz	Power	0.028 ± 0.014	0.019 ± 0.009	< 0.01	98.1
	Pz	7.8‑15.6 Hz	Power	0.026 ± 0.017	0.017 ± 0.007	< 0.01	98.1
	C3	7.8‑15.6 Hz	Power	0.022 ± 0.01	0.016 ± 0.007	< 0.05	96.3
	F3	7.8‑15.6 Hz	PermE	2.575 ± 0.007	2.566 ± 0.012	< 0.05	96.3
	O1	62.5‑100 Hz	HurstE	0.137 ± 0.027	0.117 ± 0.025	< 0.05	92.6
	Pz	3.9‑7.8 Hz	Power	0.032 ± 0.016	0.023 ± 0.01	< 0.05	92.6
	Fz	31.2‑62.2 Hz	Power	0.018 ± 0.014	0.011 ± 0.006	< 0.05	90.7
	F8	3.9‑7.8 Hz	AppE	0.795 ± 0.038	0.763 ± 0.048	< 0.05	50
	FP1	1‑31.2 Hz (scale 3)	MSE	2.158 ± 0.058	2.11 ± 0.072	< 0.05	48.1
	FP1	1‑15.6 Hz (scale 4)	MSE	2.135 ± 0.085	2.084 ± 0.068	< 0.05	48.1
Matching 12-month dataset	F7	7.8‑15.6 Hz	Power	0.031 ± 0.015	0.02 ± 0.008	< 0.001	100
	F7	3.9‑7.8 Hz	Power	0.044 ± 0.028	0.022 ± 0.011	< 0.001	100
	F7	1‑3.9 Hz	Power	0.07 ± 0.055	0.032 ± 0.015	< 0.001	100
	T3	1‑3.9 Hz	Power	0.107 ± 0.085	0.049 ± 0.033	< 0.001	100
	Pz	31.2‑62.2 Hz	HurstE	0.49 ± 0.06	0.418 ± 0.052	< 0.001	100
	F4	62.5‑100 Hz	LyapE	0.119 ± 0.009	0.112 ± 0.006	< 0.0025	100
	O1	15.6‑31.2 Hz	SampE	2.2 ± 0.038	2.139 ± 0.065	< 0.0025	100
	F8	62.5‑100 Hz	LyapE	0.116 ± 0.007	0.111 ± 0.005	< 0.01	100
	Fz	15.6‑31.2 Hz	LZC	1.547 ± 0.021	1.53 ± 0.017	< 0.01	100
	F7	31.2‑62.2 Hz	Power	0.039 ± 0.028	0.023 ± 0.013	< 0.01	98.1
	F7	15.6‑31.2 Hz	Power	0.037 ± 0.019	0.024 ± 0.014	< 0.01	98.1
	Fz	7.8‑15.6 Hz	LyapE	0.049 ± 0.006	0.043 ± 0.008	< 0.01	98.1
	O2	3.9‑7.8 Hz	HurstE	0.563 ± 0.102	0.475 ± 0.098	< 0.01	98.1
	T3	3.9‑7.8 Hz	Power	0.064 ± 0.049	0.036 ± 0.024	< 0.01	98.1
	T5	1‑3.9 Hz	LyapE	0.04 ± 0.008	0.031 ± 0.011	< 0.01	98.1
	O1	15.6‑31.2 Hz	AppE	1.469 ± 0.029	1.448 ± 0.024	< 0.01	94.4
	P3	15.6‑31.2 Hz	LyapE	0.054 ± 0.005	0.049 ± 0.006	< 0.05	83.3
	F7	15.6‑31.2 Hz	PermE	2.583 ± 0.002	2.58 ± 0.004	< 0.05	81.5
	T6	3.9‑7.8 Hz	HurstE	0.539 ± 0.101	0.453 ± 0.115	< 0.05	53.7
	Pz	31.2‑62.2 Hz	SVDE	1.564 ± 0.017	1.546 ± 0.026	< 0.05	44.4