| WBC count (109/L, x ± s) | 5.89 ± 3.75 | 6.05 ± 3.54 | 5.95 ± 3.66 | 0.720 |
| Leukopenia (< 4 × 109/L) [n(%)] | 21 (44.7) | 20 (40.0) | 41 (42.3) | 0.435 |
| Leukocytosis (> 10 × 109/L) [n(%)] | 8 (17.0) | 15 (30.0) | 23 (23.7) | 0.015 |
| Lymphocyte (%, x ± s) | 22.15 ± 8.23 | 18.62 ± 9.15 | 19.56 ± 8.90 | 0.054 |
| Monocyte (%, x ± s) | 8.05 ± 3.72 | 11.02 ± 3.45 | 9.65 ± 3.56 | 0.002 |
| Monocytopenia (< 150/μl) [n(%)] | 8 (17.0) | 2(4.0) | 10 (10.3) | 0.005 |
| Platelet count (109/L, x ± s) | 128.5 ± 62.5 | 125.5 ± 59.5 | 126.7 ± 61.5 | 0.335 |
| Thrombocytopenia (< 150 × 109/L) [n(%)] | 25 (53.2) | 26 (52.0) | 51 (52.6) | 0.736 |
| Responsiveness to antipyretics at admission [n(%)] | | | | 0.045 |
| Complete response | 4 (8.5) | 5 (10.0) | 9 (9.3) | |
| Partial response | 31 (66.0) | 40 (80.0) | 71 (73.2) | |
| No response | 12 (25.5) | 5 (10.0) | 17 (17.5) | |
| Numbers of maximal temperature at admission [n(%)] | | | | 0.003 |
| Over 40 °C | 8 (17.0) | 3 (6.0) | 11 (11.3) | |
| 39–40 °C | 21 (44.7) | 6 (12.0) | 27 (27.8) | |
| Mean temperature at admission day (°C, x ± s) | 37.8 ± 0.3 | 37.3 ± 0.2 | 37.5 ± 0.2 | 0.005 |
| Duration of fever after admission (d, x ± s) | 3.3 ± 1.5 | 2.8 ± 1.6 | 3.0 ± 1.5 | 0.156 |
