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Table 1 Participant characteristics and mortality outcomes stratified by race

From: Association of red cell distribution width with all-cause and cardiovascular-specific mortality in African American and white adults: a prospective cohort study

Characteristics African Americans Whites
N = 1563 % N = 1163 %
Age, mean (SD) 48.0 (9.2)   48.2 (9.3)  
Sex
 Women 880 56.3 658 56.6
 Men 683 43.7 505 43.4
Poverty status
 Above 823 52.7 788 67.8
 Below 740 47.3 375 32.2
Education-college degree
 No 1458 93.8 913 82.9
 Yes 97 6.2 188 17.1
 Missing 8   62  
Current smoking status
 No 686 49.9 574 54.4
 Yes 688 50.1 481 45.6
 Missing 189   108  
Current alcohol use
 No 597 43.6 426 40.3
 Yes 773 56.4 630 59.7
 Missing 193   107  
Marijuana use
 No 1141 83.3 952 90.2
 Yes 228 16.7 104 9.8
 Missing 194   107  
Current cocaine use
 No 1271 92.4 1016 95.8
 Yes 104 7.6 45 4.2
 Missing 188   102  
CES-D scale score
 < 16 859 58.9 661 59
 ≥ 16 600 41.1 460 41
 Missing 104   42  
Hypertension
 No 712 48.6 660 58.9
 Yes 752 51.4 461 41.1
 Missing 99   42  
Diabetes mellitus
 No 1209 81.9 937 83.3
 Yes 268 18.1 188 16.7
 Missing 86   38  
RDW (%) 14.48 (1.91)   13.80 (1.32)  
BMI (kg/m2) 29.95 (7.97)   30.21 (7.77)  
LDL (mg/dL) 107.16 (37.13)   111.94 (35.98)  
eGFR (ml/min/1.73 m2) 102.51 (22.72)   96.14 (17.72)  
Total WBC (109/L) 6.18 (2.04)   7.04 (2.28)  
hsCRP (mg/L) 5.47 (12.10)   4.45 (6.62)  
WHR 0.91 (0.08)   0.95 (0.39)  
All-cause mortality 141   85  
CVD-specific mortality 48   24  
  1. BMI body mass index, CES-D Center for Epidemiologic Studies Depression Scale, hsCRP high-sensitivity C-reactive protein, CVD cardiovascular disease, eGFR estimated glomerular filtration rate, LDL low density lipoprotein cholesterol, RDW red cell distribution width, SD standard deviation, WBC white blood cell count, WHR waist-hip ratio