| Characteristics | Mild-to-moderate | Severe | |
| n | 67 | 74 | | Gender, n
(%) | Female | 16 (11.3%) | 11 (7.8%) | 0.252 | Male | 51 (36.2%) | 63 (44.7%) | Diabetes, n
(%) | No | 59 (41.8%) | 70 (49.6%) | 0.277 | Yes | 8 (5.7%) | 4 (2.8%) | Hypertension, n
(%) | No | 39 (27.7%) | 38 (27%) | 0.517 | Yes | 28 (19.9%) | 36 (25.5%) | Smoking history, n
(%) | No | 24 (17%) | 25 (17.7%) | 0.939 | Yes | 43 (30.5%) | 49 (34.8%) | Height (cm), median (IQR) | 167 (161.5, 170) | 168 (164.25, 171) | 0.161 | Weight (kg), mean ± SD | 58.94 ± 7.4 | 58.29 ± 9.5 | 0.656 | BMI(kg/m2), median (IQR) | 21.67 (19.95, 22.76) | 20.99 (19.39, 22.68) | 0.131 | Age (year), median (IQR) | 78 (70, 82) | 74 (65.25, 81) | 0.145 | Course (year), median (IQR) | 3 (0, 10) | 3 (0.25, 8.75) | 0.745 | WBC (109/L), median (IQR) | 6.64 (5.56, 7.38) | 10.19 (8.32, 11.67) | <0.001 | NEUT (109/L), median (IQR) | 4.65 (3.62, 5.48) | 7.96 (6.02, 9.82) | <0.001 | LY (109/L), median (IQR) | 1.02 (0.66, 1.56) | 1.19 (0.77, 1.63) | 0.347 | MONO (109/L), median (IQR) | 0.51 (0.41, 0.61) | 0.62 (0.46, 0.82) | 0.006 | EOS (109/L), median (IQR) | 0.09 (0.03, 0.22) | 0.12 (0.02, 0.25) | 0.988 | PLT (109/L), median (IQR) | 181 (148, 218) | 234 (180.75, 302) | <0.001 | MPV (fL), mean ± SD | 9.15 ± 0.98 | 9.06 ± 1.17 | 0.630 | PDW (%), median (IQR) | 16 (15.7, 16.3) | 16 (15.7, 16.3) | 0.828 | NLR, median (IQR) | 4.21 (2.53, 6.15) | 6.34 (3.56, 13.62) | <0.001 | PLR, median (IQR) | 167.71 (116.07, 255.48) | 205.2 (136.29, 305.16) | 0.086 | LMR, median (IQR) | 1.88 (1.51, 3.39) | 1.96 (1.25, 3.01) | 0.331 | PaO2 (mmHg), median (IQR) | 78 (67.05, 95.4) | 74.7 (63.68, 95.55) | 0.668 | PaCO2 (mmHg), median (IQR) | 60.1 (47.55, 76.65) | 48.25 (42.85, 59.45) | 0.002 |
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