The incidence (per 1000 runners starting the race: 95% CI) of dermatological complications during a 56 km race by year of observation (environmental conditions), gender, age group, running experience group and running pace group
| Variable | Category | Incidence | 95% CI | |
|---|---|---|---|---|
| Year of observation | 2008 | 1.34 | 0.67 | 2.68 |
| 2009 | 1.65 | 0.89 | 3.07 | |
| 2010 | 0.91 | 0.43 | 1.90 | |
| 2011 | 2.22 | 1.32 | 3.75 | |
| Gender | Female | 1.75 | 0.97 | 3.16 |
| Male | 1.42 | 0.98 | 2.05 | |
| Age groups (years) | 20–30 | 1.31 | 0.49 | 3.48 |
| 31–40 | 1.52 | 0.90 | 2.57 | |
| 41–50 | 1.95 | 1.23 | 3.09 | |
| >50 | 0.66 | 0.21 | 2.04 | |
| Running experience (medals) | ≤1 | 2.45 | 1.56 | 3.84 |
| 2–4 | 0.97 | 0.49 | 1.95 | |
| ≥5 | 1.19 | 0.68 | 2.10 | |
| Running pace (min/km) | <6 | 2.46 | 1.63 | 3.70 |
| 6–7 | 1.03 | 0.57 | 1.86 | |
| >7 | 0.67 | 0.25 | 1.79 | |