| Continuous variables | Patients | Mean (±SD) | p | |
|---|---|---|---|---|
| Years of activity | Affected Non affected |
13.8 (7.2) 8.4 (6.5) |
.0005 | |
| Days of practice per week | Affected Non affected |
5.6 (1.5) 4.7 (1.5) |
.002 | |
| Km per week | Affected Non affected |
63.5 (26.9) 42.2 (24.1) |
.0005 | |
| Group variables | Group | Affected (%) | p | |
| Type of activity | Sprint Hurdles Middle distance Long distance |
15.4% 0% 33.3% 21.9%, |
.057 | |
| Level | Competitive Recreational |
29.1% 14.3% |
.037 | |
| Hindfoot | Neutral Varus Valgus |
29.4% 37.5% 17.1% |
.089 | |
| Longitudinal arch | Normal Cavus Flat |
19.6% 28.6% 50.0% |
.048 | |
| Multivariate analysis | OR | 95% C.I. | p | |
| Years of activity | 1.13 | 1.06 1.21 | .001 | |
| Km per week | 1.03 | 1.01 1.05 | .006 | |
| Athletics track (with reference to other surfaces) | 5.25 | 1.26 21.84 | .023 | |
| Varus hindfoot (with reference to normal hindfoot) | .87 | 0.22 3.41 | NS | |
| Valgus hindfoot (with reference to normal hindfoot) | .32 | 0.12 0.86 | .024 | |
| Cavus arch (with reference to normal arch) | 1.10 | 0.41 2.92 | NS | |
| Flat arch (with reference to normal arch) | 16.99 | 2.76 104.40 | .002 | |