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. 2019 Oct 20;75(3):473–480. doi: 10.1093/gerona/glz245

Table 1.

Clinical and Demographic Characteristics—ARIC Study (1990–1992)

N
Age (years) (mean, SD) 2,157 56.0 (5.7)
Female (N, %) 2,157 1,392 (64.5)
Education (N, %) 2,157
 <High school 825 (38.3)
 High school 615 (28.5)
 >High school 717 (33.2)
Horvath predicted age (years) (mean, SD) 2,157 55.5 (6.7)
Horvath age acceleration (years) (mean, SD) 2,157 −3.0 × 10− 9 (5.3)
Horvath age acceleration (years) (median) 2,157 −0.090
Horvath age acceleration (years) (Q1; Q3) 2,157 −3.39; 3.33
Hannum predicted age (years) (mean, SD) 2,157 60.1 (7.8)
Hannum age acceleration (years) (mean, SD) 2,157 1.7 × 10− 8 (5.5)
Hannum age acceleration (years) (median) 2,157 −0.017
Hannum age acceleration (years) (Q1; Q3) 2,157 −3.63; 3.32
Body mass index (kg/m2) (mean, SD) 2,157 30.2 (6.2)
Current smoking (N, %) 2,157 533 (24.7)
Diabetes (N, %) 2,157 535 (24.8)
Hypertension (N, %) 2,157 1,169 (54.2)
Hypercholesterolemia (N, %) 2,157 1,139 (52.8)
APOE E4 (at least 1 allele) (N, %) 2,157 892 (41.4)
Cognitive tests
 DWRT
  All (mean, SD) 2,155 6.1 (1.6)
  Quartile 1 (mean, SD) 703 4.3 (1.0)
  Quartile 2 (mean, SD) 523 6.0 (0.0)
  Quartile 3 (mean, SD) 489 7.0 (0.0)
  Quartile 4 (mean, SD) 440 8.3 (0.6)
 DSST
  All (mean, SD) 2,135 31.3 (13.4)
  Quartile 1 (mean, SD) 581 15.9 (4.8)
  Quartile 2 (mean, SD) 519 26.6 (2.3)
  Quartile 3 (mean, SD) 506 35.1 (2.8)
  Quartile 4 (mean, SD) 529 49.3 (8.3)
 WFT
  All (mean, SD) 2,149 28.0 (13.1)
  Quartile 1 (mean, SD) 565 12.7 (5.0)
  Quartile 2 (mean, SD) 545 23.5 (2.3)
  Quartile 3 (mean, SD) 517 31.7 (2.6)
  Quartile 4 (mean, SD) 522 45.8 (7.7)

Note: Q1 = 25th percentile, Q3 = 75th percentile; DSST = Digit Symbol Substitution Test, DWRT = Delayed Word Recall Test, N = number, SD = Standard deviation, WFT = Word Fluency Test.