Table 1 Characteristics of the dives studied
| Â | HOOKAH | SCUBA |
|---|---|---|
|  | Mean ± SD (min–max) | Mean ± SD (min–max) |
Number of dives | 202 | 61 |
Diving suit | Dry | Wet |
Depth (msw) | 30 ± 12 (8–48) | 33 ± 11 (10–48) |
Duration at the bottom (min) | 43 ± 15 (9–77) | 20 ± 7 (9–30) |
Total duration of immersion (min) | 64 ± 13 (18–113) | 29 ± 7 (15–45) |