Variables | Odds ratio | Confidence limits |
---|---|---|
Age (years) | ||
Reference <49 | 1.00 | |
50–59 | 0.89 | 0.62 to 1.26 |
60–60 | 0.85 | 0.59 to 1.23 |
>70 | 1.04 | 0.69 to 1.57 |
Annual distance driven (km) | ||
Reference <10 000 | 1.00 | |
11 000–20 000 | 1.31 | 0.99 to 1.73 |
21 000–30 000 | 1.82 | 1.20 to 2.76 |
>31 000 | 2.57 | 1.63 to 4.04 |