Table 1.
Demographic and clinical characteristics.
| Bronchoscopy group (n=41) | Non-bronchoscopy group (n=262) | P value | ||
|---|---|---|---|---|
| Sex | Male | 25 (61.0%) | 143 (54.6%) | 0.444 |
| Age | 6.96 ± 2.83 | 4.38 ± 2.80 | <0.001 | |
| Fever days | 7.00 (6.50,10.00) | 6.00 (4.00,7.00) | <0.001 | |
| Hospitalization days | 10.00 (8.00,14.00) | 8.00 (7.00,9.00) | <0.001 | |
| WBC (× 109/L) | 9.70 ± 4.05 | 9.12 ± 3.64 | 0.352 | |
| Neutrophils (× 109/L) | 6.53 ± 3.16 | 5.15 ± 3.25 | 0.012 | |
| CRP (mg/L) | <8 | 16 (39.0%) | 146 (55.7%) | 0.046 |
| >8 | 17.00 (10.50,35.50) | 11.00 (8.00,21.40) | ||
| HB (g/L) | 125.29 ± 11.22 | 126.07± 19.57 | 0.805 | |
| PLT (× 109/L) | 279.00 (224.00,351.50) | 252.00 (200.00,329.00) | 0.244 | |
| ALT (U/L) | 18.00 (12.25,26.00) | 13.00 (9.00,16.00) | <0.001 | |
| AST (U/L) | 32.50 (24.50,44.00) | 29.00 (23.00,35.00) | 0.082 | |
| LDH (U/L) | 419.00 (301.25,556.75) | 323.00 (279.00,393.00) | 0.002 | |
| CK-MB (U/L) | 20.00 (16.25,25.75) | 21.00 (18.00,26.75) | 0.324 | |
| Pleural reaction | Yes | 5 (12.2%) | 10 (3.8%) | 0.056 |
| Pleural effusion | Yes | 13 (31.7%) | 11 (4.2%) | <0.001 |
| Atelectasis | Yes | 11 (26.8%) | 8 (3.1%) | <0.001 |
Quantitative normal or nearly normal data are expressed as the mean ± standard deviation and analyzed by the t-test. Quantitative skewness data are presented as the median (percentile: P25, P75) and analyzed by the Wilcoxon-Mann-Whitney rank-sum test. Categorical data are expressed as the frequency and analyzed by the chi-square test. WBC, white blood cell; CRP, C-reactive protein; HB, hemoglobin; PLT, platelet; ALT, alanine aminotransferase; AST, aspartate aminotransferase; LDH, lactate dehydrogenase; CK-MB, creatine kinase-MB.