Table 2. R-tymp peak pressure (dPa) in different experience groups of divers; values are statistically significant in pair-by-pair comparison to the inexperienced group ∗, intermediate group ∗∗, experienced divers group †; F-test for experience groups, P < 0.0001 .
| Diving experience | Mean | 95% confidence interval |
| Inexperienced∗, † | 10.4 | 1.9 to 18.9 |
| Intermediate∗∗, † | 4.9 | -2.6 to 12.4 |
| Experienced∗, ∗∗∗, † | -15.3 | -25.6 to -5 |
| Professional∗, ∗∗∗, † | 33.8 | 16.1 to 51.5 |