Table 1 Clinical and laboratory characteristics.
 | Patients with mild disease (51) | Patients with severe disease (32) | P -value | ||
---|---|---|---|---|---|
 |  | Total | Survived (19) | Died (13) |  |
Age (years) | 24.55±13.92 | 38.45±18.06 | 34.72±20.48 | 44.54±11.59 | 0.001 |
Gender (female/male) | 22/29 | 11/21 | 6/13 | 5/8 | 0.427 |
Complications | — | 32/32 (100%) | 19/19 (100%) | 13/13 (100%) | <0.001 |
 Consolidation and infiltrates on chest X-ray | — | 31/32 (96.9%) | 18/19 (94.73%) | 13/13 (100%) | <0.001 |
 Respiratory failure | — | 14/32 (43.8%) | 8/19 (42.1%) | 6/13 (46.2%) | <0.001 |
 ARDS | — | 10/32 (31.3%) | 3/19 (15.8%) | 7/13 (53.8%) | <0.001 |
 DIC | — | 3/32 (9.4%) | 0/19 (0%) | 3/13 (23.1%) | 0.054 |
 Renal failure | — | 2/32 (6.3%) | 2/19 (10.5%) | 0/13 (0%) | 0.146 |
WBC ( × 109) | 5.16±1.93 | 7.19±4.11 | 7.19±3.47 | 7.19±5.29 | 0.019 |
NEU% | 53.51±14.51 | 77.38±15.22 | 74.76±17.43 | 82.10±9.11 | <0.001 |
NEU absolute counts ( × 109) | 2.93±1.77 | 5.57±3.42 | 5.41±3.09 | 5.86±4.12 | 0.001 |
Lymphocytes% | 35.46±13.83 | 15.44±9.42 | 17.13±10.90 | 12.41±5.06 | <0.001 |
Lymphocytes absolute counts ( × 109) | 1.68±0.69 | 1.07±0.85 | 1.17±0.91 | 0.88±0.74 | 0.001 |
ALT>40 IU/l | 1/51 (2.0%) | 14/32 (43.8%) | 7/19 (36.84%) | 7/13 (53.84%) | <0.001 |
Hypokalemia | 2/51 (3.9%) | 10/32 (31.3%) | 8/19 (42.10%) | 2/13 (15.38%) | 0.001 |
Length of hospital stay | 5.9±2.1 | 17.3±12.0 |  |  | <0.05 |