Table 5 Significant univariate Cox regression findings
Variable | Injured (n = 132) | Uninjured (n = 126) | Unadjusted HR | 95% CI | P value | Adjusted HR | 95% CI | P value |
|---|---|---|---|---|---|---|---|---|
Mean ± SD | Mean ± SD | Lower to Upper | Lower to Upper | |||||
FSP–RFS (Reference) | 71 RFS (54%) | 79 RFS (70%) | 1.00 | 1.00 | ||||
FSP–NRFS | 61 NRFS (46%) | 35 NRFS (30%) | 1.14 | 1.00 to 2.06 | 0.05* | 1.37 | 0.93 to 2.01 | 0.11 |
Knee Valgus at Initial Contact (°) | − 1.6 ± 2.9 | − 2.6 ± 2.8 | 1.09 | 1.03 to 1.16 | 0.00* | 1.10 | 1.03 to 1.17 | 0.00* |
Knee Valgus at Toe Off (°) | − 2.7 ± 3.0 | − 3.8 ± 3.1 | 1.09 | 1.03 to 1.15 | 0.00* | 1.10 | 1.04 to 1.17 | 0.00* |
Peak Knee Valgus (°) | − 1.0 ± 3.0 | − 1.9 ± 3.0 | 1.07 | 1.01 to 1.13 | 0.02* | 1.08 | 1.02 to 1.15 | 0.01* |
Knee Int Rot at Peak Knee Flexion (°) | 21.3 ± 7.5 | 19.5 ± 8.0 | 1.03 | 1.00 to 1.05 | 0.03* | 1.03 | 1.00 to 1.05 | 0.04* |
Knee Rotation Excursion (°) | 20.3 ± 5.2 | 19.3 ± 4.1 | 1.04 | 1.00 to 1.08 | 0.03* | 1.05 | 1.01 to 1.09 | 0.02* |
Peak Thorax Drop to Contralateral Side (°) | 1.2 ± 2.3 | 0.8 ± 2.2 | 1.06 | 0.98 to 1.15 | 0.13 | 1.09 | 1.00 to 1.18 | 0.05* |
No previous injury (Reference) | 68 (52%) | 84 (67%) | 1.00 | 1.00 | ||||
Previous Injury | 64 (48%) | 42 (33%) | 1.57 | 1.12 to 2.21 | 0.01* | 1.57 | 1.10 to 2.23 | 0.01* |
Not training for a marathon (Reference) | 48 (46%) | 70 (54%) | 1.00 | 1.00 | ||||
Training for a marathon | 84 (64%) | 56 (46%) | 1.75 | 1.22 to 2.50 | 0.00* | 1.76 | 1.22 to 2.54 | 0.00* |
Change shoes 0–3 months (Reference) | 14 (11%) | 13 (10%) | 1.00 | 1.00 | ||||
Change shoes 4–6 months | 40 (30%) | 37 (29%) | 0.50 | 0.23 to 1.07 | 0.07 | 0.49 | 0.23 to 1.06 | 0.07 |
Change shoes 7–12 months | 42 (32%) | 33 (26%) | 0.46 | 0.22 to 0.98 | 0.05* | 0.45 | 0.20 to 0.99 | 0.05* |
Change shoes 12 months + | 36 (27%) | 43 (34%) | 0.40 | 0.19 to 0.86 | 0.02* | 0.38 | 0.17 to 0.85 | 0.02* |