Table 1.

Variable means and correlations (Pearson) between study variables

	Study variable	Mean	SD	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1	Age (years)	41.13	11.302	—
2	Accidents (last 2 years)	0.48	1.023	−.114∗	—
3	Penalties (last 2 years)	1.51	1.913	−.160∗	.219∗	—
4	Weekdays driving	4.94	0.334	−.015	.054	.069	—
5	Weekend days driving	2.37	0.858	−.076†	−.004	.038	.046	—
6	Driving hours per week	72.58	9.154	−.031	.011	.076†	.045	.386∗	—
7	Years in company	7.90	7.580	.445∗	.010	−.085†	−.032	−.051	.056	—
8	Supervisor support	11.58	3.317	.060	−.118∗	−.061	−.048	−.125∗	−.065	−.043	—
9	Peer support	11.28	2.924	.070	−.096∗	−.083†	.004	−.040	−.060	.008	.513∗	—
10	Social support at work	22.87	5.439	.072	−.125∗	−.081†	−.027	−.099∗	−.071	−.021	.887∗	.851∗	—
11	Job insecurity	6.78	2.299	−.130∗	.185∗	.174∗	.077†	.145∗	.080†	−.002	−.392∗	−.313∗	−.407∗	—
12	Use of skills	36.8	5.261	.007	−.210∗	−.082†	.024	.034	.132∗	−.052	.323∗	.295∗	.355∗	−.194∗	—
13	Decision-making	39.25	8.401	.048	−.153∗	−.088†	.008	−.002	.153∗	−.002	.294∗	.298∗	.338∗	−.221∗	.579∗	—
14	Control at work	76.05	12.217	.032	−.196∗	−.093†	.015	.012	.163∗	−.028	.339∗	.331∗	.383∗	−.238∗	.828∗	.936∗	—
15	Psychological demands	32.36	7.422	−.148∗	.107∗	.204∗	.028	.200∗	.220∗	−.019	−.228∗	−.210∗	−.255∗	.364∗	.027	−.012	.005	—
16	Job strain	0.88	0.278	−.106∗	.229∗	.203∗	.004	.135∗	.082†	.023	−.400∗	−.386∗	−.453∗	.426∗	−.535∗	−.612∗	−.652∗	.701∗

SD, standard deviation.

^∗Correlation is significant at level 0.01 (two tailed).

^†Correlation is significant at level 0.05 (two tailed).