Table 1 Patient characteristics
Characteristic | All cases | Nonsevere cases | Severe cases | P value |
|---|---|---|---|---|
N | 512 | 435 | 77 | – |
Age, y | 60.6 ± 17.4 | 58.6 ± 17.5 | 71.9 ± 11.6 |  < 0.001 |
Sex, male | 304 (59.4) | 252 (57.9) | 52 (67.5) | 0.145 |
BMI | 24.5 ± 4.30 | 24.5 ± 4.46 | 24.4 ± 3.47 | 0.687 |
Smoking status, current | 65 (12.7) | 59 (13.6) | 6 (7.79) | 0.223 |
Chronic heart disease | 46 (8.98) | 34 (7.82) | 12 (15.6) | 0.048 |
Chronic kidney disease | 27 (5.27) | 18 (4.14) | 9 (11.7) | 0.014 |
Diabetes | 105 (20.5) | 81 (18.6) | 24 (31.2) | 0.018 |
WBC [/µL] | 5634 ± 2406 | 5429 ± 2072 | 6778 ± 3575 | 0.006 |
NLR [%] | 31.1 ± 24.5 | 33.3 ± 24.8 | 18.6 ± 18.0 |  < 0.001 |
LDH [U/L] | 307 ± 125 | 284 ± 101 | 436 ± 163 |  < 0.001 |
CRP [mg/dL] | 5.88 ± 5.74 | 5.14 ± 5.10 | 10.0 ± 7.24 |  < 0.001 |
Cr [mg/dL] | 1.01 ± 1.27 | 0.96 ± 1.05 | 1.33 ± 2.09 | 0.039 |
CT scan date, days | 5.93 ± 3.29 | 5.92 ± 3.30 | 5.95(3.31) | 0.967 |
Mortality | 28(5.47) | 0(0) | 28(36.4) | – |
Endotracheal intubation | 61(11.9) | 0(0) | 61(79.2) | – |