Table 5. The diagnostic sensitivity rate of IOS parameters in early determination COPD patients.
| Parameters | Number (n) | Sensitivity (%) |
| Z5 | 8 | 28.5 |
| R5 | 7 | 25 |
| R20 | 5 | 31.5 |
| AAt least one > 150% | 9 | 32% |
| All >105% | 4 | 14.5 |
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