Table 1.
Clinical and laboratory findings of patients infected with the 2009 H1N1 virus, with and without pneumonia
| Group | No Pneumonia (n = 137) |
Pneumonia (n = 80) |
P |
|---|---|---|---|
| Clinical characteristics | |||
| Mean age (y) | 6.5 ± 4.0 | 5.5 ± 3.1 | 0.04 |
| Male/Female | 72/65 | 60/20 | 0.001 |
| Duration of fever (d) | |||
| Before admission | 1.9 ± 0.9 | 2.0 ± 0.9 | NS |
| Total | 2.2 ± 1.0 | 2.6 ± 0.9 | 0.006 |
| Hospitalization (d) | 4.5 ± 1.4 | 5.6 ± 1.3 | < 0.001 |
| Oseltamivir, < 48 h (n,%)a | 130 (95) | 75 (94) | NS |
| Laboratory findings | |||
| Haemoglobin (g/dL) | 12.5 ± 0.9 | 12.8 ± 1.0 | 0.03 |
| Leukocyte (× 109/L) | 6.5 ± 3.3 | 8.8 ± 3.7 | < 0.001 |
| Neutrophil (%) | 59 ± 19 | 69 ± 20 | < 0.001 |
| Lymphocyte (%) | 30 ± 17 | 21 ± 17 | < 0.001 |
| Monocyte (%) | 10 ± 4 | 8 ± 4 | 0.005 |
| Platelet (× 109/L) | 224 ± 58 | 241 ± 61 | 0.04 |
| CRP (mg/dL) | 1.2 ± 1.5 | 2.4 ± 2.5 | < 0.001 |
| ESR (mm/h) | 16 ± 12 | 18 ± 13 | NS |
CRP; C-reactive protein, ESR; erythrocyte sedimentation rate. NS, statistically non-specific
a Number (%) of patients who received oseltamivir treatment within 48 h of fever onset.