Univariate analysis of predictors of abnormal CT scores
| Normal CT score(n = 14) | Abnormal CT score(n = 43) | p value | |
|---|---|---|---|
| FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; Tlco, carbon monoxide transfer factor; TLC, total lung capacity; CXR, chest radiograph; ICU, intensive care unit. | |||
| Mean (SD) age (years) | 34.6 (7.6) | 39.3 (11.4) | 0.163 |
| Sex (% female) | 42.9% | 67.4% | 0.101 |
| Current smoker (%) | 14.3% | 2.33% | 0.146 |
| Neutrophil count on admission (109/l) | 4.05 (1.83) | 4.21 (1.96) | 0.793 |
| Lymphocyte count on admission (109/l) | 0.91 (0.28) | 0.74 (3.12) | 0.089 |
| Lactate dehydrogenase on admission (IU/l) | 517.4 (180.9) | 539.5 (332.2) | 0.814 |
| Abnormal FEV1 (<80% predicted normal) | 14.3% | 16.3% | 0.859 |
| Abnormal FEF25–75% (<80% predicted normal) | 21.4% | 44.1% | 0.129 |
| Abnormal FVC (<80% predicted normal) | 7.14% | 6.98% | 0.983 |
| Abnormal Tlco (<80% predicted normal) | 71.4% | 62.8% | 0.556 |
| Abnormal TLC (<80% predicted normal) | 28.6% | 30.2% | 0.906 |
| Median (IQR) CXR peak score | 5.5 (3.75–11.25) | 12 (7.0–18.0) | 0.022 |
| Pulse steroid use (yes) | 57.1% | 93.0% | 0.004 |
| History of ICU admission (yes) | 21.4% | 32.6% | 0.429 |
| History of intubation (yes) | 14.3% | 23.3% | 0.475 |