Table 2.

Regression analysis of characteristic variables for accidents

Factors		Unstandardized coefficients		Standardized coefficients	t‡
		B∗	SE	β†
Foreigner	Age	−0.019	0.009	−0.135	−2.016
	Educations	−0.106	0.016	−0.359	−6.488
	Language	−0.096	0.019	−0.357	−5.086
	Training	0.010	0.197	0.005	0.048
	(Constant)	2.329	0.161		14.509
Korean	Age	−0.008	0.013	−0.023	−0.589
	Education	−0.049	0.017	−0.116	−2.928
	Training	−0.297	0.066	−0.158	−4.499
	(Constant)	1.821	0.124		14.649

R²= 0.64 (foreigner), R² = 0.11 (Korean), p < 0.001.

SE, standard error.

^∗Unstandardized coefficients.

^†Standardized regression coefficient.

^‡Ratio of the departure of an estimated parameter from its notional value to its SE.