Table 3. Multivariate analysis of factors affecting the behavior score of motorcycle riders in Bukan, Iran.

Variables	Reg. coefficient	Standard Beta	Significance	95% CI
Age>=30	-2.7	-0.11	0.034	-5.1- 0.2
Lacking a riding license	2.3	0.09	0.08	-0.3- 4.8
Riding experience>1 year	-7.8	-0.28	<0.001	-10.7- 4.9
Average daily riding	Reference group: <2 hours
2-5 hours per day	4.9	0.18	0.014	1- 8.8
>=5 hours per day	7.6	2.5	0.003	2.7- 12.5
Regression constant	29	3	<0.001	23.1- 34.9