Relation between injury status over season and factors of interest adjusted for contractual status
| Injury status | ||||
|---|---|---|---|---|
| Over whole season | First three months of season | |||
| Factor | OR (95% CI) | p Value | OR (95% CI) | p Value |
| *Relative to “no injury” category. | ||||
| †Odds ratio (OR) based on change of one point on scale. | ||||
| ‡Rounded to nearest whole number. | ||||
| Age on 1 August 1997 | ||||
| <16 years | 1.00 | 1.00 | ||
| 16–19 years | 1.26 (0.70 to 2.28) | 0.443 | 1.98 (0.84 to 4.69) | 0.120 |
| 20–24 years | 1.62 (0.90 to 2.92) | 0.108 | 2.99 (1.28 to 6.95) | 0.011 |
| 25–29 years | 1.98 (1.09 to 3.60) | 0.025 | 3.70 (1.59 to 8.62) | 0.002 |
| 30–34 years | 1.88 (0.98 to 3.63) | 0.059 | 3.39 (1.38 to 8.31) | 0.008 |
| ≥35 years | 0.99 (0.46 to 2.11) | 0.975 | 1.35 (0.45 to 4.02) | 0.589 |
| Level of summer manual work | ||||
| None | 1.00 | 1.00 | ||
| Light | 0.87 (0.54 to 1.40) | 0.564 | 0.78 (0.45 to 1.35) | 0.370 |
| Medium | 1.19 (0.82 to 1.73) | 0.371 | 1.06 (0.70 to 1.61) | 0.769 |
| Heavy | 1.03 (0.70 to 1.51) | 0.898 | 0.92 (0.60 to 1.43) | 0.714 |
| Injured at end of previous season* | 1.83 (1.34 to 2.50) | 0.000 | 2.09 (1.51 to 2.91) | 0.000 |
| Had an injury that delayed start of rugby training* | 1.43 (1.00 to 2.06) | 0.053 | 1.56 (1.07 to 2.28) | 0.021 |
| Injured during preseason rugby training* | 1.18 (0.79 to 1.75) | 0.420 | 1.00 (0.65 to 1.55) | 0.991 |
| Hours of summer manual work† | 1.00 (0.99 to 1.01) | 0.618 | 1.00 (0.99 to 1.01) | 0.933 |
| Number of preseason training weeks attended† | 1.05 (1.02 to 1.08) | 0.001 | 1.05 (1.02 to 1.09) | 0.001 |
| Number of pre-season training sessions attended† | 1.02 (1.01 to 1.03) | 0.000 | 1.02 (1.01 to 1.03) | 0.001 |
| Average preseason training sessions per week†‡ | 1.20 (1.06 to 1.36) | 0.005 | 1.33 (1.15 to 1.53) | 0.000 |
| Weekly hours of aerobic activities† | 1.00 (0.97 to 1.03) | 0.931 | 1.01 (0.98 to 1.05) | 0.398 |
| Weekly hours of power activities† | 1.06 (1.00 to 1.13) | 0.066 | 1.04 (0.97 to 1.11) | 0.280 |
| Perceived fitness: speed† | 1.11 (1.03 to 1.21) | 0.010 | 1.09 (0.99 to 1.19) | 0.070 |
| Perceived fitness: stamina† | 1.09 (1.00 to 1.18) | 0.041 | 1.08 (0.99 to 1.18) | 0.096 |
| Perceived fitness: strength† | 1.12 (1.02 to 1.23) | 0.015 | 1.11 (1.00 to 1.23) | 0.053 |