Table 3 Characteristics of seat belt wearing by passengers when wearing status was clear.
| Characteristic | No of front seat passengers | % wearing seat belt† | % not wearing seat belt† | Adjusted RR wearing‡ (95% CI) | No of rear seat passengers | % wearing seat belt |
|---|---|---|---|---|---|---|
| Occupants | 7752 | 19.0 | 80.7 | 6801 | 0.5 | |
| Age/sex | ||||||
| Male ⋝8 years | 5018 | 17.7 | 82.0 | 1 | 4058 | 0.6 |
| Female ⋝8 years | 2710 | 21.3 | 78.5 | 1.06 (0.95 to 1.18) | 2441 | 0.5 |
| Child <8 years¶ | 189 | 10.1 | 89.9 | 0.69 (0.43 to 1.11) | 192 | 0.3 |
| Time of day | ||||||
| 06:00–7:59 | 616 | 12.1 | 87.9 | 1 | 452 | 0.2 |
| 08:00–9:59 | 1350 | 19.8 | 80.0 | 1.17 (0.87 to 1.67) | 1020 | 0.3 |
| 10:00–11:59 | 1545 | 15.7 | 84.1 | 0.98 (0.74 to 1.31) | 1225 | 1.0 |
| 12:00–13:59 | 1475 | 17.3 | 82.1 | 1.23 (0.94 to 1.61) | 1348 | 0.4 |
| 14:00–15:59 | 1345 | 19.1 | 76.2 | 1.32 (0.98 to 1.76) | 1126 | 0.4 |
| 16:00–17:59 | 1681 | 18.5 | 78.7 | 1.37* (1.03 to 1.80) | 1630 | 0.3 |
| Vehicle type | ||||||
| Taxi | 3391 | 4.7 | 95.1 | 1 | 4206 | 0.2 |
| Car | 3568 | 31.1 | 68.8 | 5.86* (4.9 to 7.01) | 2476 | 1.0 |
| Van | 640 | 30.3 | 68.6 | 6.20* (4.95 to 7.78) | 71 | 0 |
| Pickup | 224 | 8.5 | 91.5 | 2.55* (1.57 to 4.14) | 48 | 0 |
| Sites | ||||||
| 1 City centre | 2390 | 20.7 | 78.9 | 1 | 2209 | 0.2 |
| 2 Central roundabout | 1641 | 13.2 | 86.8 | 1.04 (0.87 to 1.25) | 1845 | 0.2 |
| 3 Local north road | 1214 | 19.5 | 79.3 | 1.22* (1.0 to 1.49) | 951 | 0.2 |
| 4 Major north road | 2578 | 20.1 | 79.6 | 0.93 (0.77 to 1.13) | 1796 | 1.2 |
| Driver wearing seat belt | ||||||
| Worn | 5263 | 25.8 | 74.0 | 1 | 4543 | 0.6 |
| Not worn | 2489 | 4.8 | 95.0 | 0.23* (0.19 to 0.28) | 1478 | 0.3 |
RR, relative risk.
*Significant result.
†Difference between sum and 100% represents belt tampering.
‡Each factor adjusted for all other factors.
¶Second front seat passenger included in % wearing seat belt but not in model.