Results of Poisson regression model predicting the injury rate ratio (RR) (n=360)*
| Variable | Coefficient | Z statistic | p Value | RR | 95% CI (RR) |
|---|---|---|---|---|---|
| *Log likelihood = −1180.221. | |||||
| †Gender: 1 = male; 2 = female. CI = confidence interval. | |||||
| Age (years) | −0.34 | −11.00 | <0.01 | 0.71 | 0.67 to 0.75 |
| Gender† | −0.24 | −4.90 | <0.01 | 0.79 | 0.72 to 0.87 |
| Quality | 0.03 | 0.28 | 0.78 | 1.03 | 0.85 to 1.24 |
| Safety | 0.13 | 1.61 | 0.11 | 1.14 | 0.97 to 1.33 |
| Gender and quality | −0.20 | −3.11 | 0.01 | — | — |
| Gender and safety | 0.19 | 3.62 | <0.01 | — | — |