| 状态 | 组别 | 例数 | 2h | 4h | 8h | 24h | 48h |
| 静息时 | S组 | 20 | 1.3 ± 0.9a | 2.1 ± 0.3ab | 2.9 ± 0.2ab | 3.5 ± 0.2a | 3.6 ± 0.3a |
| I组 | 20 | 1.2 ± 0.2a | 1.7 ± 0.2a | 2.4 ± 0.2a | 3.3 ± 0.3a | 3.5 ± 0.3a | |
| SI组 | 20 | 0.3 ± 0.2 | 0.8 ± 0.2 | 1.9 ± 0.3 | 2.7 ± 0.3 | 3.2 ± 0.2 | |
| 咳嗽时 | S组 | 20 | 1.6 ± 0.2a | 2.8 ± 0.2ab | 3.5 ± 0.3ab | 4.3 ± 0.3a | 4.3 ± 0.4a |
| I组 | 20 | 1.5 ± 0.2a | 2.3 ± 0.3a | 3.3 ± 0.2a | 4.2 ± 0.3a | 4.2 ± 0.4a | |
| SI组 | 20 | 0.6 ± 0.2 | 1.7 ± 0.2 | 2.9 ± 0.3 | 3.8 ± 0.3 | 3.9 ± 0.3 |