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| Number of events | Age Mean (SD) | Number of dives Median (IQR) | Number of hours Median (IQR) | Total |
| 0 | 45 (10) | 200 (81−400) | 250 (92−550) | 175 (42) |
| 1 | 48 (10) | 200 (100−500) | 300 (137−700) | 174 (42) |
| 2 | 46 (10) | 442 (200−1,000) | 600 (300−2,000) | 46 (11) |
| ≥ 3 | 49 (8) | 700 (450−2,700) | 1,000 (450−2,700) | 17 (4) |
