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| OBU Index | Hemoptysis (n = 54) | No Hemoptysis (n = 231) | Percentage of Hemoptysis (%) |
|---|---|---|---|
| 1, None | 0 (0) | 6 (2.6) | 0 |
| 2, Low | 4 (7.4) | 42 (18.2) | 8.7 |
| 3, Possible | 12 (22.2) | 97 (42.0) | 11.0 |
| 4, Probable | 24 (44.4) | 51 (22.1) | 32.0 |
| 5, High | 14 (25.9) | 35 (15.2) | 28.6 |
Unless otherwise specified, data are numbers of patients (with percentages in parentheses). OBU = open bronchus unavoidability
