Skip to main content

Table 3 Descriptive statistics of the study cohort stratified in quartiles by numbers of AMY1A copies

From: Alpha-amylase 1A copy number variants and the association with memory performance and Alzheimer’s dementia

  MoCA test participants (n = 791)
AMY1 copy number
Baseline characteristics 1–5 (n = 245, 31%) 6 (n = 212, 27%) 7–9 (n = 205, 26%) ≥ 10 (n = 129, 16%)
Age, years 54.6 (5.4) 54.7 (5.3) 54.7 (5.2) 55.1 (5.1)
Women 152 (62%) 140 (66%) 131 (64%) 75 (58%)
APOE ε4 carrier 72 (30%) 64 (31%) 58 (29%) 39 (31%)
Education
Primary/elementary school (≤ 8 years) 93 (40%) 67 (33%) 77 (40%) 44 (35%)
Body mass index 25.1 (3.7) 25.3 (3.9) 25.4 (3.3) 25.0 (3.8)
Fasting blood glucose, mmol/L 4.9 (0.7) 5.0 (0.9) 4.9 (0.8) 5.0 (0.8)
Diabetes at baseline 6 (2%) 6 (3%) 6 (3%) 4 (3%)
Diabetes, prevalent or incident 47 (19%) 39 (18%) 30 (15%) 27 (21%)
  1. Data is presented as mean (SD) or n (%). Missing data APOE (n = 17), education (n = 30), and glucose (n = 73)