Skip to main content

Table 2 Demographic, clinical, lifestyle, cognitive, neuroimaging, and genetic characteristics

From: Dynamic functional connectivity patterns associated with dementia risk

 

N = 127

Mean

sd

min

max

Demographic

 Age (years)

68.9

3.82

65.0

83.0

 Sex (% of women)

63.8 %

-

-

-

 Education (years)

13.1

3.14

7.0

22.0

Clinical characteristics

 Fasting blood sugar (g/L)

1.0

0.2

0.7

2.1

 Body mass index (kg/m2)

26.1

4.3

18.1

44.2

 Systolic blood pressure (mmHg)

135

20.4

87.7

198

 LDL cholesterol (g/L)

1.6

0.4

0.7

2.8

 Depressive symptoms (GDS)

1.3

1.8

0

11

Lifestyle characteristics

 Smoking (pack years)

7.13

12.8

0

75.0

 Alcohol consumption (unit per week)

4.7

5.0

0

24.5

 Engagement in stimulating activities

    

  Early-life LEQ

31.2

9.3

10.0

52.8

  Mid-life LEQ

38.3

8.5

19.8

65.7

  Late-life LEQ

28.1

4.55

17.4

38.4

 Cognitive activity

    

  Early-life CAQ

17.4

3.2

8.0

27.0

  Mid-life CAQ

16.9

3.5

5.0

25.0

  Late-life CAQ

17.4

3.2

8.0

24.0

 Physical activity (PASE)

129.0

60.8

21.5

330.0

Cognition

 PACC5 (z-score)

0.004

0.65

-1.86

1.76

Neuroimaging

 Amyloid load (late florbetapir-PET amyloid SUVR)

1.25

0.16

0.99

1.82

 Brain perfusion (early florbetapir-PET SUVR)

1.01

0.06

0.87

1.20

 Hippocampal volume (mm3)

2460

249

1740

3150

Genetics

 APOE4 status (% ≥ 1 allele E4 )

26%

-

-

-

  1. PACC5 Preclinical Alzheimer’s Cognitive Composite, LEQ Lifetime of Experience Questionnaire, CAQ Cognitive Activity Questionnaire, PASE Physical Activity Scale for the Elderly, SUVR standardized uptake value, APOE4 apolipoproteine ε4, sd standard deviation, min minimum value, max maximum value