| Experience participating national competitions | DIPCA.3 | |
| High group (n = 20) | Low group (n = 20) | |
| Nothing | 5 | 8 |
| (25.0%) | (40.0%) | |
| 1 - 2 times | 7 | 10 |
| (35.0%) | (50.0%) | |
| More than 3 times | 8 | 2 |
| (40.0%) | (10.0%) | |
| Qui square test | n.s. | |