Sleep parameters

Type of diffuse white matter hyperintensities

Correlation coefficient

P value

SE

−0.023

0.944

SL

−0.291

0.359

Arousal I

0.496

0.101

RDI

0.321

0.310

SPO2

0.090

0.782

WASO

0.420

0.174

SFI

0.359

0.252

PSQI

−0.169

0.600

ESS

−0.043

0.895

BMI

0.460

0.132

Sleep parameters

Degree of brain atrophy

Correlation coefficient

P value

SE

−0.288

0.219

SL

−0.174

0.462

Arousal I

0.392

0.087

RDI

0.236

0.316

SPO2

0.201

0.397

WASO

0.305

0.191

SFI

0.00

1.000

PSQI

−0.062

0.795

EES

0.035

0.882

Apnea

0.333

0.151

BMI

0.323

0.165

Right (n = 8)

Left (n = 4)

Bilateral (n = 8)

P value

SE

64.10 ± 21.30

58.38 ± 27.63

75.45 ± 5.89

0.275

SL

23.50 ± 14.87

15.62 ± 14.99

15.44 ± 10.65

0.443

Arousal I

11.19 ± 7.81

26.12 ± 20.93

9.35 ± 6.58

0.222

RDI

16.00 ± 17.07

36.22 ± 48.62

19.92 ± 26.63

0.872

SPO2

10.88 ± 19.42

3.25 ± 3.77

2.75 ± 3.33

0.967

WASO

61.88 ± 34.98

80.38 ± 50.79

41.75 ± 13.43

0.317

SFI

0.46 ± 0.26

0.50 ± 0.34

0.57 ± 0.22

0.466

PSQI

11.12 ± 1.89

13.00 ± 1.63

11.12 ± 1.81

0.223

ESS

11.62 ± 3.46

12.25 ± 2.06

11.62 ± 3.11

0.847