Pulmonary function tests in patients by HRCT findings 6 months after SARS diagnosis
| Adjusted mean (SE)* | Adjusted mean difference(95% CI) | p value | ||
|---|---|---|---|---|
| Normal HRCT scan(n = 20) | Abnormal HRCT scan(n = 14) | |||
| FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; FRC, functional residual capacity; FEF25–75, mid forced expiratory flow; TLC, total lung capacity; Tlco, carbon monoxide transfer factor. | ||||
| *Values are adjusted for the z score of weight for age. | ||||
| FVC (% predicted) | 93.6(2.7) | 89.6 (3.1) | −3.9 (−12.3 to 4.5) | 0.348 |
| FEV1 (% predicted) | 90.0 (2.3) | 86.4 (2.7) | −3.7 (−10.8 to 3.5) | 0.309 |
| FEV1/FVC (% predicted) | 96.5 (2.1) | 97.8 (2.5) | 1.3 (−5.3 to 7.9) | 0.687 |
| FEF25–75 (% predicted) | 87.6 (5.3) | 86.6 (6.2) | −1.0 (−17.8 to 15.7) | 0.900 |
| TLC (% predicted) | 100.5 (3.7) | 101.3 (4.2) | 0.8 (−10.7 to 12.2) | 0.893 |
| FRC (pleth) (l) | 2.2 (0.1) | 2.1 (0.2) | −0.1 (−0.6 to 0.3) | 0.512 |
| Tlco (ml/min/mm Hg) | 23.6 (2.0) | 21.2 (2.2) | −2.4 (−8.6 to 3.8) | 0.431 |
| Tlco (% predicted) | 116.6 (7.5) | 107.0 (8.2) | −9.6 (−32.3 to 13.1) | 0.397 |