The profile by race type, sex and age groups of all race entrants, runners who gave consent to be contacted for research study, and runners who participated in this study by completing the pre-race acute illness questionnaire
| All race entrants (n=26 453) | Runners who gave consent to be contacted (n=16 492) | Runners participating in this study (n=7031) | ||||
|---|---|---|---|---|---|---|
| N | Per cent | N | Per cent | N | Per cent | |
| Race type | ||||||
| 21.1 km | 16 284 | 61.6 | 10 786 | 65.4 | 4374 | 62.2 |
| 56 km | 9171 | 34.7 | 4992 | 30.3 | 2397 | 34.1 |
| Trial runs | 998 | 3.8 | 714 | 4.3 | 260 | 3.7 |
| Sex | ||||||
| Males | 15 369 | 58.1 | 9334 | 56.6 | 3952 | 56.2 |
| Females | 11 084 | 41.9 | 7158 | 43.4 | 3079 | 43.8 |
| Age groups | ||||||
| <30 years | 7765 | 29.4 | 5174 | 31.4 | 1611 | 22.9* |
| 31–40 years | 8451 | 32.0 | 5225 | 31.7 | 2340 | 33.3 |
| 41–50 years | 6366 | 24.1 | 3805 | 23.1 | 1901 | 27.0 |
| >50 years | 3871 | 14.6 | 2288 | 13.9 | 1179 | 16.8* |
*Significantly different from all race entrants (p<0.05).