Final Cox model examining time to injury event
| Variable* | HR | 95% CI | p |
|---|---|---|---|
| Age | |||
| <15 years | 5.82 | 1.90 to 17.82 | 0.002 |
| 15 years | 1.71 | 0.53 to 5.55 | 0.307 |
| 16 years | 4.47 | 1.56 to 12.80 | 0.005 |
| 17 years | referent | – | – |
| ≥18 years | 2.76 | 0.80 to 9.59 | 0.110 |
| Quantity of sleep during the week | |||
| ≥8 h/night | referent | – | – |
| <8 h/night | 2.10 | 1.09 to 4.04 | 0.026 |
| Feeling tense, stressed, anxious | |||
| Not often/never | referent | – | – |
| Sometimes/often | 2.25 | 1.24 to 4.09 | 0.008 |
| Average TV watching/week | |||
| Yes | Referent | – | – |
| No | 2.65 | 1.17 to 6.03 | 0.020 |
| Working around ditches | |||
| No | Referent | – | – |
| Yes | 2.01 | 1.09 to 3.74 | 0.026 |
| Task—Detasseling | |||
| No | referent | – | – |
| Yes | 2.70 | 1.15 to 6.34 | 0.023 |
*n=295 records and 49 injuries.