Basic, psychological, and lifestyle risk factors for injury incidence and proportion of playing season missed
| Injury incidence rate (per 1000 hours) | Proportion of season missed | ||||||
|---|---|---|---|---|---|---|---|
| Factor | N | Rate | RR (95% CI) | p Value | Proportion | RR (95% CI) | p Value |
| Age group | |||||||
| 17 and under (Reference) | 41 | 50 | 1.00 | 0.10 | 1.00 | ||
| 18 to 19 | 75 | 76 | 1.60 (0.99 to 2.57) | 0.05 | 0.11 | 1.06 (0.54 to 2.10) | 0.86 |
| 20 to 22 | 79 | 94 | 2.03 (1.28 to 3.19) | <0.01 | 0.11 | 1.07 (0.55 to 2.10) | 0.83 |
| 23 and over | 53 | 101 | 2.19 (1.36 to 3.53) | <0.01 | 0.16 | 1.69 (0.86 to 3.29) | 0.12 |
| Ethnic origin | |||||||
| NZ Maori/Pacific Islander (Reference) | 44 | 74 | 1.00 | 0.13 | 1.00 | ||
| European | 203 | 83 | 1.13 (0.77 to 1.67) | 0.50 | 0.12 | 0.90 (0.53 to 1.55) | 0.70 |
| Strenuous physical activity (hours/week) | |||||||
| <5 (Reference) | 38 | 68 | 1.00 | 0.13 | 1.00 | ||
| 5 to 9 | 97 | 76 | 1.12 (0.71 to 1.77) | 0.61 | 0.10 | 0.78 (0.41 to 1.46) | 0.44 |
| 10 to 19 | 54 | 83 | 1.25 (0.76 to 2.04) | 0.36 | 0.10 | 0.76 (0.38 to 1.52) | 0.43 |
| 20 to 39 | 22 | 83 | 1.25 (0.69 to 2.27) | 0.44 | 0.10 | 0.77 (0.32 to 1.89) | 0.57 |
| >39 | 29 | 105 | 1.63 (0.96 to 2.77) | 0.06 | 0.21 | 1.86 (0.95 to 3.68) | 0.07 |
| Cigarette smoking | |||||||
| Non-smoker (Reference) | 168 | 77 | 1.00 | 0.10 | 1.00 | ||
| Ex-smoker | 36 | 110 | 1.49 (1.04 to 2.14) | 0.02 | 0.15 | 1.65 (0.96 to 2.84) | 0.06 |
| Current Smoker | 42 | 79 | 1.02 (0.68 to 1.54) | 0.91 | 0.18 | 2.11 (1.28 to 3.47) | <0.01 |
| Alcohol use (AUDIT score) | |||||||
| <8 (Reference) | 54 | 77 | 1.00 | 0.16 | 1.00 | ||
| 8 to 10 | 53 | 77 | 1.00 (0.65 to 1.54) | 0.99 | 0.09 | 0.55 (0.29 to 1.01) | 0.05 |
| 11 to 12 | 40 | 92 | 1.23 (0.79 to 1.92) | 0.36 | 0.12 | 0.74 (0.39 to 1.39) | 0.34 |
| 13 to 16 | 50 | 80 | 1.05 (0.68 to 1.64) | 0.81 | 0.12 | 0.73 (0.40 to 1.31) | 0.28 |
| 17 to 30 | 51 | 86 | 1.14 (0.74 to 1.77) | 0.54 | 0.09 | 0.55 (0.29 to 1.05) | 0.06 |
| Self rated health status | |||||||
| Very good (Reference) | 103 | 80 | 1.00 | 0.12 | 1.00 | ||
| Good | 130 | 84 | 1.06 (0.80 to 1.42) | 0.67 | 0.12 | 0.94 (0.62 to 1.44) | 0.78 |
| Not too good | 12 | 62 | 0.76 (0.38 to 1.53) | 0.44 | 0.06 | 0.42 (0.12 to 1.56) | 0.19 |
| General Health Questionnaire (score) | |||||||
| 0 (Reference) | 196 | 77 | 1.00 | 0.12 | 1.00 | ||
| 1 | 54 | 100 | 1.34 (0.96 to 1.85) | 0.08 | 0.11 | 0.95 (0.55 to 1.60) | 0.84 |
| Stress (previous 4 weeks) | |||||||
| None (Reference) | 52 | 73 | 1.00 | 0.08 | 1.00 | ||
| A little | 126 | 87 | 1.22 (0.85 to 1.77) | 0.26 | 0.14 | 1.70 (0.96 to 3.02) | 0.06 |
| Somewhat | 61 | 74 | 1.02 (0.67 to 1.56) | 0.91 | 0.10 | 1.15 (0.58 to 2.26) | 0.69 |
| A lot | 9 | 128 | 1.92 (0.97 to 3.84) | 0.06 | 0.11 | 1.30 (0.38 to 4.42) | 0.67 |
| SCAT (score) | |||||||
| <18 (Reference) | 43 | 77 | 1.00 | 0.12 | 1.00 | ||
| 18 to 20 | 68 | 80 | 1.03 (0.66 to 1.60) | 0.88 | 0.13 | 1.10 (0.59 to 2.04) | 0.76 |
| 21 to 22 | 41 | 82 | 1.07 (0.66 to 1.74) | 0.79 | 0.11 | 0.90 (0.44 to 1.81) | 0.76 |
| 23 to 25 | 47 | 83 | 1.08 (0.67 to 1.74) | 0.74 | 0.13 | 1.09 (0.56 to 2.13) | 0.79 |
| 26 to 30 | 47 | 89 | 1.18 (0.75 to 1.88) | 0.47 | 0.09 | 0.73 (0.36 to 1.49) | 0.38 |