Table 6.

Percent distribution of vehicles driven by participating drivers by vehicle model year, state, and driver age group

	Connecticut (n=828)				Rhode Island (n=485)				Kentucky (n=1,337)
Model-year	65–69	70–74	75–79	80+	65–69	70–74	75–79	80+	65–69	70–74	75–79	80+
2003–07	42	34	29	25	35	41	28	32	35	36	35	29
1998–2002	36	36	40	29	28	31	32	29	41	40	36	33
1997 and older	22	30	31	46	38	28	40	38	24	25	29	38
	100	100	100	100	100	100	100	100	100	100	100	100
	χ2(1)=27.0, p<0.001				χ2 (1)=1.5, p=0.216				χ2(1)=11.4, p<0.001

Note. The Mantel-Haenszel chi-square statistic is reported.