Table 2.
Baseline characteristics of 333 patients
| Variables | N/mean ± standard deviation | Percentage/ range |
|---|---|---|
| Age, years | 63.2 ± 16.3 | (13, 96) |
| Male | 223 | (67.0) |
| Severe pneumonia | 56 | (16.8) |
| Laboratory test * | ||
| Bacteria (+) | 36 | (10.8) |
| Virus (+) | 104 | (31.2) |
| M. pneumoniae (+) | 10 | (3.0) |
| White blood cell, 109† | 8.8 ± 4.3 | (1.3, 32.7) |
| Neurophil cells in total white blood cells, %† | 69.3 ± 15.2 | (6.5, 98.4) |
| Lymphocytes in total white blood cells, %† | 20.1 ± 13.1 | (0.7, 114.5) |
| C-reactive protein, mg/L† | 59.0 ± 74.9 | (0.0, 404.0) |
*
Laboratory tests were done by sputum smear for bacteria, and quantitative reverse transcriptase-polymerase chain reaction for virus as well as M. pneumoniae.
†Seven patients had missing data for white blood cell counts; 9 patients for N cell counts; 63 patients for lymph node, and 43 patients for C-reactive protein.