Table 1.
Univariate analyses of main racial groups and risk factors.
| Variable | Black patients N = 336 (42.1%) |
White patients N = 408 (51.1%) |
P value |
|---|---|---|---|
| Age (years) – mean ± standard deviation (SD) | 62.9 ± 15.0 | 71.8 ± 16.4 | <.001∗ |
| Female gender – no. (%) | 174 (51.9) | 211 (52.0) | 1.00 |
| Body mass index (kg/m2) – mean ± standard deviation (SD) | 32.4 ± 8.6 | 28.8 ± 7.5 | <.001∗ |
| Alcohol – no. (%) | 8 (3.3) | 14 (4.6) | .52 |
| Smoking (current) – no. (%) | 21 (7.5) | 12 (3.6) | .03∗ |
| Congestive heart failure – no. (%) | 44 (13.1) | 59 (14.5) | .60 |
| Hypertension – no. (%) | 228 (68.1) | 262 (64.5) | .35 |
| Chronic obstructive pulmonary disease – no. (%) | 38 (11.3) | 64 (15.8) | .09 |
| Diabetes – no. (%) | 136 (40.6) | 130 (32.0) | .02∗ |
| Glomerular filtration rate (mL/min) – mean ± standard deviation (SD) | 60.04 ± 32.2 | 60.34 ± 31.4 | .90 |
| Neutrophil count per mm3 – mean ± standard deviation (SD) | 5.8 ± 3.5 | 6.0 ± 3.4 | .53 |
| Lymphocyte to neutrophil ratio multiplied by 100 – mean ± standard deviation (SD) | 29.2 ± 65.6 | 26.1 ± 73.5 | .57 |
| Aspirin – no. (%) | 97 (29.0) | 134 (33.0) | .27 |
| Hydroxychloroquine – no. (%) | 4 (1.2) | 2 (0.5) | .42 |
| Time from symptoms onset to admission (days) – mean ± standard deviation (SD) | 6.6 ± 5.3 | 5.4 ± 5.4 | .006∗ |
∗2-sided P < .05 statistically significant.