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

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