| 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 refer ence 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
|
|
|
|
|
|