Table 2.

Association between driver’s work functioning impairment and experience of minor traffic accidents

Outcome variables	Explanatory variables		n = 428	More than one minor traffic accident	Univariate				Multivariate∗
			%	%	Incidence rate ratio	95% confidence interval		p	Incidence rate ratio	95% confidence interval		p
Experience of minor traffic accidents in the past three months	Work functioning impairment	Low	80	16	reference			0.074†	reference			0.045†
		Middle	17	17	1.04	0.58	1.87	0.884	1.04	0.57	1.88	0.899
		High	3	23	1.68	0.50	5.67	0.404	1.90	0.54	6.71	0.319

Using weekly driving hours as an offset term.

^∗Adjusted for sex, age, experience of taxi driving.

^†p for trend.