Odds ratio (OR) and confidence interval (CI) of knee injury at follow up by flexibility, endurance strength, and physical activity at baseline, and age, body mass index (BMI), and physical activity at follow up
| Variable | Men | Women | ||||||
|---|---|---|---|---|---|---|---|---|
| Univariate | Multivariate | Univariate | Multivariate | |||||
| OR (95% CI) | p Value | OR (95% CI) | p Value | OR (95% CI) | p Value | OR (95% CI) | p Value | |
| *Denominator of odds ratios. | ||||||||
| Age at follow up | 1.23 (1.07 to 1.42) | 0.004 | 1.30 (1.09 to 1.56) | 0.004 | 1.11 (0.93 to 1.33) | 0.26 | 1.15 (0.92 to 1.45) | 0.21 |
| BMI at follow up | 1.05 (0.99 to 1.12) | 0.09 | 1.06 (0.98 to 1.14) | 0.17 | 1.10 (1.03 to 1.16) | 0.002 | 1.16 (1.07 to 1.24) | 0.000 |
| Flexibility tertiles | ||||||||
| Low | 1 (Reference)* | 1 (Reference) | 1 (Reference) | 1 (Reference) | ||||
| Intermediate | 0.81 (0.42 to 1.53) | 0.51 | 0.66 (0.33 to 1.32) | 0.24 | 1.30 (0.63 to 2.68) | 0.48 | 1.03 (0.47 to 2.27) | 0.94 |
| High | 1.45 (0.82 to 2.57) | 0.20 | 1.11 (0.59 to 2.08) | 0.75 | 0.75 (0.33 to 1.66) | 0.47 | 0.66 (0.28 to 1.55) | 0.34 |
| Endurance strength tertiles | ||||||||
| Low | 1 (Reference) | 1 (Reference) | 1 (Reference) | 1 (Reference) | ||||
| Intermediate | 1.16 (0.60 to 2.22) | 0.66 | 1.28 (0.63 to 2.58) | 0.49 | 1.61 (0.73 to 3.57) | 0.24 | 1.56 (0.67 to 3.64) | 0.30 |
| High | 1.96 (1.05 to 3.64) | 0.034 | 2.05 (1.03 to 4.11) | 0.042 | 1.38 (0.60 to 3.18) | 0.45 | 1.70 (0.70 to 4.13) | 0.24 |
| School age physical activity | ||||||||
| Inactive | 1 (Reference) | 1 (Reference) | 1 (Reference) | 1 (Reference) | ||||
| Active | 1.34 (0.83 to 2.18) | 0.23 | 1.47 (0.79 to 2.73) | 0.23 | 1.78 (0.88 to 3.61) | 0.11 | 2.07 (0.88 to 4.90) | 0.10 |
| Physical activity at follow up | ||||||||
| 1–3 | 1 (Reference) | 1 (Reference) | 1 (Reference) | 1 (Reference) | ||||
| 4–5 | 1.17 (0.71 to 1.91) | 0.54 | 1.25 (0.67 to 2.33) | 0.48 | 0.84 (0.41 to 1.70) | 0.62 | 0.98 (0.42 to 2.29) | 0.95 |
| 6–7 | 0.88 (0.42 to 1.87) | 0.75 | 0.96 (0.53 to 2.71) | 0.65 | 1.07 (0.44 to 2.62) | 0.88 | 0.78 (0.26 to 2.39) | 0.67 |