. Author manuscript; available in PMC: 2009 Jul 1.

Published in final edited form as: Accid Anal Prev. 2008 Apr 9;40(4):1430–1440. doi: 10.1016/j.aap.2008.03.006

Table 3.

Final model for percentage of younger-than-age-21 drivers involved in fatal crashes who had a positive BAC with the two older driver age groups and the 16 MLDA 21 laws included as covariates

Parameter	B	Effect size (% change)	SE	P-value	Tolerance
(Constant)	-0.484		0.440	.276
Natural log of % of 26+ with + BAC	0.689		0.156	.000	.508
Natural log of % of 21-25 with + BAC	0.437		0.158	.008	.496
False ID - Use	-0.076	-7.32	0.035	.034	.966

Dependent variable: Log of the percentage of younger-than-age-21 drivers with + BAC. R² = 0.68