Results of serial pulmonary function tests and respiratory muscle strength among SARS survivors (n = 110)
| Parameter | 3 months | 6 months |
|---|---|---|
| TLC, total lung capacity; VC, vital capacity; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; RV, residual volume; Tlco, carbon monoxide transfer factor adjusted for haemoglobin; Kco, transfer coefficient (transfer factor per alveolar volume); Pimax, Pemax, maximum static inspiratory and expiratory pressures. | ||
| Values are expressed as median (interquartile range). | ||
| *p<0.01, Kco at 3 months v 6 months. No statistically significant differences were noted between other lung function parameters at 3 and 6 months. | ||
| FVC (% of predicted) | 104.5 (95.0–114.0) | 104.5 (95.0–113.0) |
| FEV1 (% of predicted) | 108.0 (99.0–118.5) | 106.0 (97.8–116.0) |
| TLC (% of predicted) | 104.0 (93.3–115.8) | 108.0 (98.0–117.0) |
| VC (% of predicted) | 105.0 (95.0–115.5) | 105.5 (95.0–113.5) |
| RV (% of predicted) | 108.0 (70.5–140.8) | 115.0 (84.0–139.8) |
| Tlco (% of predicted) | 98.0 (88.5–107.0) | 95.5 (85.0–106.0) |
| Kco (% of predicted) | 106.0 (98.0–115.5) | 110.5 (100.0–119.0)* |
| Pimax (% of predicted) | 104.0 (88.0–127.0) | 101.0 (87.5–125.0) |
| Pemax (% of predicted) | 74.0 (62.0–86.0) | 77.0 (59.0–86.0) |