Table 5 NPIK Global Sleep Disturbance Score—full population linear regression

 Heterozygous

0.67

0.54

0.221

0.41

0.57

0.471

 Homozygous

3.18

1.20

0.008

2.53

1.18

0.034

 Low

0.51

0.94

0.590

 Intermediate

0.07

1.04

0.943

 High

-0.73

1.05

0.493

APOE ε2 carrier status

1.43

1.24

0.252

Age

-0.08

0.03

0.004

Male gender

-0.53

0.50

0.293

NPI-D Global Score (depression)

0.01

0.14

0.928

NPI-E Global Score (anxiety)

0.19

0.13

0.145

CDR-SOB

0.13

0.04

0.003