Multivariate Poisson regression analysis of inappropriate restraint for restrained children under age 9 years (unweighted, n = 2009)
| Correlates | Inappropriate restraint | |
|---|---|---|
| RR (95% CI) | p Value | |
| *Each category includes at least one child passenger. | ||
| Child’s age (years) | ||
| <1 | 1.00 (–) | |
| 1–3 | 0.24 (0.14–0.41) | <0.001 |
| 4–8 | 3.62 (2.76–5.37) | <0.001 |
| Driver’s age (years) | ||
| ⩽25 | 1.00 (–) | |
| >25 | 0.84 (0.73–0.95) | 0.01 |
| Crash time | ||
| Morning & daytime (6:00am–6:59pm) | 1.00 (–) | |
| Night-time (7:00pm–5:59am) | 1.12 (1.01–1.22) | 0.02 |
| Trip purpose | ||
| Non-recreational | 1.00 (–) | |
| Recreational | 1.03 (0.94–1.13) | 0.53 |
| Number of passengers* | ||
| One child | 1.00 (–) | |
| 2 | 1.03 (0.93–1.17) | 0.59 |
| ⩾3 | 1.12 (1.02–1.27) | 0.04 |