Frequency of lung function parameters below normal range in SARS patients
| N <60% predicted value | N <70% predicted value | N <80% predicted value | ||||
|---|---|---|---|---|---|---|
| 3 months | 6 months | 3 months | 6 months | 3 months | 6 months | |
| TLC, total lung capacity; VC, vital capacity; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; Tlco, carbon monoxide transfer factor adjusted for haemoglobin; Kco, transfer coefficient (transfer factor per alveolar volume). | ||||||
| FEV1 | 0 | 0 | 2 (1.8%) | 1 (0.9%) | 3 (2.7%) | 4 (3.6%) |
| FVC | 1 (0.9%) | 1 (0.9%) | 1 (0.9%) | 1 (0.9%) | 6 (5.5%) | 4 (3.6%) |
| VC | 1 (0.9%) | 2 (1.8%) | 2 (1.8%) | 3 (2.7%) | 6 (5.5%) | 5 (4.5%) |
| TLC | 0 | 0 | 3 (2.7%) | 2 (1.8%) | 7 (6.4%) | 8 (7.3%) |
| Tlco | 2 (1.8%) | 7 (6.4%) | 7 (6.4%) | 9 (8.2%) | 14 (12.7%) | 17 (15.5%) |
| Kco | 0 | 0 | 0 | 0 | 2 (1.8%) | 1 (0.9%) |