Evaluating the impacts of the demerit points system on traffic law violations and driver involvement in road accidents in Israel

European Transport Research Review

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Table 8 Changes in injury accidents' indicators* between before and after periods, with implementation of the corrective measures after 2006

a—in the treatment-groups and comparison-groups of drivers
Treatment type	1—treatment-group, 0—comparison-group	Estimate: relation between accident indicators in before and after periods, in logarithmic-scale	St. Error	Adj P (Bonferroni)	Exp (Estimate)	Relative reduction in accident indicator between before and after periods, %
1	0	0.012	0.003	< 0.0001	1.012	1.2
	1	0.114	0.004	< 0.0001	1.120	12.0
2	0	0.015	0.006	0.009	1.015	1.5
	1	0.127	0.009	< 0.0001	1.135	13.5
3	0	0.022	0.007	0.001	1.022	2.2
	1	0.147	0.010	< 0.0001	1.158	15.8
4	0	0.013	0.006	0.028	1.013	1.3
	1	0.107	0.009	< 0.0001	1.113	11.3
5	0	0.022	0.004	< 0.0001	1.022	2.2
	1	0.106	0.005	< 0.0001	1.112	11.2
6	0	0.019	0.007	0.011	1.019	1.9
	1	0.140	0.011	< 0.0001	1.151	15.1
7	0	0.030	0.009	0.001	1.030	3.0
	1	0.149	0.013	< 0.0001	1.160	16.0
8	0	0.019	0.007	0.010	1.019	1.9
	1	0.132	0.011	< 0.0001	1.141	14.1
All	0	0.019	0.003	< 0.0001	1.019	1.9
	1	0.128	0.004	< 0.0001	1.136	13.6

b—in the treatment-groups vs. comparison-groups of drivers
Treatment type	Odds ratio estimate, in logarithmic-scale	St. Error	Adj P (Holm)	Exp(Odds ratio estimate)	Reduction in accident indicator between before and after periods, in treatment-group vs. comparison-group, %
1	0.102	0.005	< 0.0001	1.107	10.7
2	0.111	0.010	< 0.0001	1.118	11.8
3	0.125	0.012	< 0.0001	1.133	13.3
4	0.094	0.010	< 0.0001	1.099	9.9
5	0.084	0.006	< 0.0001	1.088	8.8
6	0.121	0.013	< 0.0001	1.129	12.9
7	0.119	0.015	< 0.0001	1.126	12.6
8	0.112	0.013	< 0.0001	1.119	11.9
All	0.109	0.005	< 0.0001	1.115	11.5