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. 2020 Dec 31;15(12):e0244612. doi: 10.1371/journal.pone.0244612

Table 1. Baseline characteristics by race.

All (N = 21,782) Black (n = 7,974) White (n = 13,808) p-value
Demographics
Male % (n) 44.0 (9,583) 36.0 (2,873) 48.6 (6,710) <0.001
Stroke Belt % (n) 55.8 (12,155) 51.0 (4,069) 58.6 (8,086) <0.001
Age, mean (SD) 64.1 (9.1) 63.1 (8.8) 64.7 (9.2) <0.001
Education* N = 21,773 n = 7,970 n = 13,803 <0.001
 < HS, % (n) 9.5 (2,072) 15.6 (1,241) 6.0 (831)
 HS grad % (n) 25.0 (5,454) 27.2 (2,165) 23.8 (3,289)
 Some college % (n) 27.3 (5,944) 28.1 (2,243) 26.8 (3,701)
 ≥ College grad % (n) 38.1 (8,303) 29.1 (2,321) 43.3 (5,982)
Income, $1,000/year, % (n) <0.001
 < 20 14.8 (3,233) 22.9 (1,824) 10.2 (1,409)
 20–34 23.3 (5,077) 26.2 (2,088) 21.6 (2,989)
 35–74 32.1 (6,998) 29.0 (2,316) 33.9 (4,682)
 ≥75 18.1 (3,945) 10.8 (860) 22.3 (3085)
 Refused 11.6 (2,529) 11.1 (886) 11.9 (1,643)
Health Behaviors
Alcohol amount % (n)* N = 21,394 n = 7,785 n = 13,609 <0.001
 None 60.3 (12,911) 70.1 (5,457) 54.8 (7,454)
 Moderate 35.5 (7,592) 27.5 (2,137) 40.1 (5,455)
 Heavy 4.2 (891) 2.5 (191) 5.1 (700)
Smoking frequency % (n)* N = 21,701 n = 7,939 n = 13,762 <0.001
 Never/Past 86.7 (18,819) 84.1 (6,677) 88.2 (12,142)
 Current 13.3 (2,882) 15.9 (1,262) 11.8 (1,620)
No weekly exercise % (n)* 32.0 (6,872) 35.0 (2,756) 30.2 (4,116) <0.001
N = 21,488 n = 7,871 n = 13,617
Vascular Risk Factors
Diabetes % (n)* 18.7 (4,043) 26.7 (2,120) 14.0 (1,923) <0.001
N = 21,649 n = 7,927 n = 13,722
Prevalent CVD % (n)* 15.7 (3,368) 13.0 (1,019) 17.3 (2,349) <0.001
N = 21,436 n = 7,834 n = 13,602
Dyslipidemia % (n)* 57.9 (12,485) 53.4 (4,212) 60.5 (8,273) <0.001
N = 21,559 n = 7,888 n = 13,671
Hypertension % (n)* 71.9 (15,625) 83.1 (6,619) 65.4 (9,006) <0.001
N = 21,736 n = 7,964 n = 13,772
BMI Category % (n)* N = 21,653 n = 7,913 n = 13,740 <0.001
 Underweight/Normal 24.6 (5,327) 16.7 (1,323) 29.1 (4,004)
 Overweight/Obese 75.4 (16,326) 83.3 (6,590) 70.9 (9,736)
CRP mg/L, median (IQR) 2.1 (0.9–4.8) 2.8 (1.2–6.3) 1.8 (0.8–4.1) <0.001

Note. CVD = cardiovascular disease, BMI = body mass index, CRP = C-reactive protein.