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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