Table 1 Baseline sample demographics across clinical AD status

Sex

 Male

132

53.44

33

68.75

18

42.86

Race

 White

237

97.13

45

93.75

40

97.56

Ethnicity

 Non-Hispanic

234

94.74

48

100

41

97.62

Intellectual Disability

 Mild

121

48.99

20

41.67

18

42.86

 Moderate

106

42.91

24

50.00

19

39.58

 Severe

20

8.10

4

8.33

5

11.90

APOE4

 Yes

49

19.92

17

35.42

18

42.86

Age (years)

42.20

9.00

52.17

5.60

54.31

5.08

RSMB

 Aggression

0.43

1.11

0.69

1.43

1.33

2.18

 Restricted/Repetitive

0.25

0.69

0.56

0.92

0.48

0.77

 Depression-Behavior

0.46

1.08

0.71

1.41

1.02

1.09

 Depression-Physical

0.74

1.32

1.15

1.35

1.76

2.09

 Avoidant Personality

0.41

0.82

0.69

1.22

0.98

1.26

 Dependent Personality

0.59

1.15

0.85

1.40

1.05

1.29

 Psychosis

0.32

0.83

0.54

0.90

1.02

1.07

 Paranoia

0.32

0.79

0.58

1.24

0.62

1.19

 Total Score

2.47

4.03

3.90

4.80

6.31

5.97