Table 3 Discriminant function analysis
|  | Orthoses group (n = 47) | Rocker-sole footwear group (n = 41) |
|---|---|---|
Wilk’s lambda, chi-square, p | λ = 0.77, χ 2 = 10.9, p = 0.012 | λ = 0.91, χ 2 = 3.5, p = 0.175 |
Predictor variable (discriminant function coefficient) | Total hours intervention worn during study (0.681) | Foot Function Index stiffness (1.00) |
Pain severity while walking (0.468) | Radiographic severity (0.287) | |
Foot Function Index difficulty (0.361) | Â | |
% of cases correctly classified | 73.3 | 63.2 |
% of cases correctly classified following validation | 62.2 | 52.6 |