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Table 1 Characteristics of 1369 CARDIA participants with cognitive function at Year 25

From: Association of blood pressure with cognitive function at midlife: a Mendelian randomization study

Variable Value
Sample size, N 1369
Age (SD) (year) 50.8 (3.3)
Female (%) 739 (54.0)
Center (%)
 Birmingham, AL 273 (19.9)
 Chicago, IL 320 (23.4)
 Minneapolis, MN 443 (32.4)
 Oakland, CA 333 (24.3)
At least college education (%) 917 (67.0)
BMI (SD) (kg/m2) 28.3 (6.1)
Type2 Diabetes (%) 124 (9.1)
Current Smoking (%) 165 (12.1)
Systolic Blood Pressure (SD) (mmHg) 114.4 (13.7)
Diastolic Blood Pressure (SD) (mmHg) 70.8 (10.1)
Pulse Pressure (SD) (mmHg) 43.6 (7.6)
Hypertension (%) 341 (24.9)
HBP Rx use (%) 228 (16.7)
DSST (Mean (SD): Min-Max) 75.0 (14.9): 21–125
RAVLT (Mean (SD): Min-Max) 9.4 (3.1): 0–15
Stroop (Mean (SD): Min-Max) 19.3 (8.0): 4–71
  1. Abbreviations: CARDIA, the Coronary Artery Risk Development in Young Adults Study; SD Standard deviation, BMI Body mass index (calculated as weight in kilograms divided by height in meters squared), HBP Rx Anti-hypertensive medication, DSST Digit Symbol Substitution Test, RAVLT Rey Auditory Verbal Learning Test, Stroop The Stroop Interference test