Table 5 Changes in driving frequency and in use of driving-impairing medicines: multiple logistic regression analysis
Independent variables | Change in driving frequency (n = 305) | Change in the use of driving-impairing medicines (n = 296) | ||||
|---|---|---|---|---|---|---|
Odds-ratio | 95% CI for OR | Odds-ratio | 95% CI for OR | |||
lower | upper | lower | upper | |||
Country (Germany used as reference) | ||||||
Belgium | 2.00 | 0.53 | 6.41 | 0.79 | 0.29 | 2.19 |
The Netherlands | 0.69 | 0.21 | 2.26 | 0.24* | 0.08 | 0.69 |
Spain | 0.63 | 0.23 | 1.72 | 0.46 | 0.20 | 1.07 |
Gender (0 = male; 1 = female) | 1.70 | 0.97 | 3.00 | 1.18 | 0.77 | 1.80 |
Age categories (category 55-64 used as reference) | ||||||
18-25 | 4.87 | 0.93 | 25.49 | 0.81 | 0.18 | 3.52 |
26-34 | 4.17* | 1.14 | 15.25 | 1.78 | 0.59 | 5.42 |
35-44 | 2.08 | 0.71 | 6.15 | 1.72 | 0.68 | 4.31 |
45-54 | 2.75 | 0.97 | 7.84 | 1.79 | 0.71 | 4.54 |
65-75 | 1.62 | 0.48 | 5.84 | 0.60 | 0.19 | 1.95 |
Educational level (Intermediate vocational training used as reference) | ||||||
Not completed primary school | 1.14 | 0.17 | 7.65 | 0.76 | 0.14 | 4.15 |
Completed primary school | 2.78 | 0.95 | 8.11 | 2.13 | 0.81 | 5.61 |
Lower vocational training | 2.20 | 0.82 | 5.90 | 0.79 | 0.33 | 1.88 |
University | 1.46 | 0.57 | 3.71 | 0.98 | 0.43 | 2.20 |
Use of motorised vehicles | ||||||
(0 = sporadic users; 1 = frequent users) | 0.35* | 0.18 | 0.69 | 0.58 | 0.31 | 1.10 |
Experienced side effects | ||||||
(0 = no side effects; 1 = side effects) | 3.18* | 1.40 | 7.21 | 3.39* | 1.68 | 6.82 |
Medicines (Tranquilisers used as reference) | ||||||
Sedatives | 0.77 | 0.36 | 1.62 | 1.07 | 0.55 | 2.08 |
Antidepressants | 0.84 | 0.42 | 1.68 | 0.24* | 0.12 | 0.50 |
Anti-allergics | 0.24* | 0.10 | 0.58 | 0.82 | 0.40 | 1.66 |
Knowledge about the risk of having a road accident (0 = totally disagree; 5 = totally agree) | 0.932 | 0.65 | 1.33 | 1.49* | 1.09 | 2.03 |
Attitude | ||||||
Use of medicines and driving (0 = totally disagree; 5 = totally agree) | 0.88 | 0.64 | 1.20 | 1.08 | 0.82 | 1.43 |
Driving under the influence of driving-impairing medicines (0 = totally disagree; 5 = totally agree) | 2.23* | 1.43 | 3.50 | 1.29 | 0.91 | 1.85 |
Adjusted R 2 | 0.348 | 0.273 | ||||
p-value (model) | < 0.001* | < 0.001* | ||||