Associations between risk taking driving behaviours (dependent variables) and report of ever having tickets fixed (independent variable). Results from multivariate logistic regression models*
| Dependent variables | ||||||
|---|---|---|---|---|---|---|
| Models | Maximum speed in built up areas >55 km/h | Maximum speed on rural roads >100 km/h | Maximum speed on motorways >145 km/h | Drinking and driving in the past 12 months | Risky use of cellular phone while driving | At least one SRTA as a driver of a four wheel vehicle in the follow up period |
| *Adjusted odds ratios are only shown for the independent variable “report of ever having tickets fixed”. All independent variables appear in table 4 (for type 4 models). | ||||||
| Type 1 models: unadjusted OR | 1.48 (1.35 to 1.61) 13548 | 1.75 (1.62 to 1.89) 13531 | 2.02 (1.85 to 2.20) 13475 | 1.69 (1.55 to 1.85) 13575 | 2.09 (1.88 to 2.32) 13623 | 1.29 (1.11 to 1.51) 13637 |
| Type 2 models: OR estimated with logistic regression multivariate model adjusted on sex, age, driving mileage per year (three groups), alcohol consumption (five groups), and vehicle categories (four groups) | 1.28 (1.16 to 1.40) 11874 | 1.61 (1.48 to 1.75) 11862 | 1.79 (1.63 to 1.97) 11817 | 1.44 (1.30 to 1.59) 11893 | 1.90 (1.69 to 2.13) 11927 | 1.22 (1.03 to 1.44) 11940 |
| Type 3 models = type 2 models + score of negative attitudes towards traffic regulations | 1.24 (1.13 to 1.37) 11862 | 1.52 (1.40 to 1.66) 11850 | 1.67 (1.52 to 1.84) 11805 | 1.39 (1.26 to 1.54) 11881 | 1.84 (1.63 to 2.07) 11894 | 1.22 (1.03 to 1.45) 11907 |
| Type 4 models = type 3 models + missing points on driving licence | 1.24 (1.13 to 1.37) 11789 | 1.52 (1.39 to 1.65) 11776 | 1.66 (1.51 to 1.83) 11732 | 1.39 (1.26 to 1.53) 11809 | 1.83 (1.62 to 2.05) 11820 | 1.21 (1.02 to 1.44) 11833 |
| Type 5 models = same as type 3 models among participants with less than maximum number of points (12) on driving licence | 1.78 (0.75 to 1.85) 610 | 1.49 (1.04 to 2.14) 608 | 1.76 (1.22 to 2.56) 610 | 1.56 (1.06 to 2.30) 611 | 1.84 (1.19 to 2.86) 611 | 1.05 (0.54 to 2.06) 612 |