The DNF frequency (% runners) and RR ratio in the control and symptomatic group and subgroups by system and types of symptoms (adjusted for gender)
| Group | System | Types of symptoms | All starters (n=6507) | Per cent | Runners who finished | DNF | % DNF | RR * | 95% CI | p Value† |
|---|---|---|---|---|---|---|---|---|---|---|
| Control | 5316 | 81.7 | 5248 | 68 | 1.3 | − | − | − | ||
| Symptomatic | All | 1191 | 18.3 | 1166 | 25 | 2.1 | 1.55 | 0.99 to 2.44 | 0.0346† | |
| Localised | 741 | 11.4 | 727 | 14 | 1.9 | 1.47 | 0.83 to 2.61 | 0.1828 | ||
| Systemic | 450 | 6.9 | 439 | 11 | 2.4 | 1.90 | 1.01 to 3.59 | 0.0469† | ||
| Respiratory | Localised | 455 | 7.0 | 448 | 7 | 1.5 | ‡ | ‡ | ‡ | |
| Systemic | 335 | 5.1 | 329 | 6 | 1.8 | ‡ | ‡ | ‡ | ||
| Gastrointestinal | Localised | 150 | 2.3 | 147 | 3 | 2.0 | ‡ | ‡ | ‡ | |
| Systemic | 68 | 1.0 | 66 | 2 | 2.9 | ‡ | ‡ | ‡ | ||
| Resp and GIT | Localised | 41 | 0.6 | 40 | 1 | 2.4 | ‡ | ‡ | ‡ | |
| Systemic | 38 | 0.6 | 37 | 1 | 2.6 | ‡ | ‡ | ‡ | ||
| Other§ | Localised | 177 | 2.7 | 172 | 5 | 2.8 | ‡ | ‡ | ‡ | |
| Systemic | 85 | 1.3 | 81 | 4 | 4.7 | ‡ | ‡ | ‡ |
*RR ratio—reference group is the control group.
†Significantly different (pairwise vs control group).
‡Sample sizes are too small for analysis.
§Non-respiratory and non-gastrointestinal symptom subgroup.
DNF, did not finish; GIT, gastrointestinal; Resp, respiratory; RR, relative risk.