Stratified analysis of the effect of shoe version according to foot morphology (n=372)
| Supinated feet | Neutral feet | Pronated feet | |
|---|---|---|---|
| Injured/non-injured HR (95% CI) p value | Injured/non-injured HR (95% CI) p value | Injured/non-injured HR (95% CI) p value | |
| Standard shoes | 11/19 1.49 (0.74 to 2.98) 0.263 | 30/78 1 | 19/28 1.80* (1.01 to 3.22) 0.048 |
| Motion control shoes | 5/25 0.76 (0.29 to 1.97) 0.574 | 21/89 0.79 (0.45 to 1.38) 0.398 | 7/40 0.64 (0.28 to 1.45) 0.280 |
| HR (95%CI); p value for shoe version within strata of foot morphology (standard shoes is ref) | 0.59 (0.20 to 1.73) 0.335 | 0.78 (0.44 to 1.37) 0.382 | 0.34* (0.13 to 0.84) 0.020 |
*Significant results; the reference was the group of runners with neutral feet, using neutral shoes.