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Table 1 Demographic and clinical characteristics of young-old and very-old groups

From: Elevated cerebrovascular resistance index is associated with cognitive dysfunction in the very-old

  Young-old (60 to 75) Very-old (80+) P
Number 38 20  
Age (years) 69.1 (3.9) 84.8 (4.0) <.001
Gender (M/F) (number) 14/24 9/11 .55
Education (years) 15.9 (1.9) 15.7 (3.0) .69
APOE (ε4-negative/ε4-positive) (number) 21/15 14/6 .39
Systolic BP 125.8 (14.2) 136.2 (17.8) <.05
Diastolic BP 74.9 (7.7) 77.8 (11.7) .26
Mean arterial pressure 91.9 (8.6) 97.3 (13.0) .06
Pulse pressure 50.9 (12.4) 58.4 (11.3) <.05
Anti-hyperintensive medication use (number currently prescribed medication/number not currently prescribed medication) 17/21 14/6 .07
CVLT-II Long delay free recall z-score 0.3 0.6 .42
D-KEFS Verbal fluency (letter) ss 12.4 13.2 .46
D-KEFS Trail making test switching ss 12.3 12.1 .82
  1. Means (standard deviations); BP, blood pressure; CVLT-II, California Verbal Learning Test – 2nd Edition; D-KEFS, Delis-Kaplan Executive Function System; M/F, male/female; ss, scaled score.