. Author manuscript; available in PMC: 2020 Sep 1.

Published in final edited form as: J Safety Res. 2019 May 2;70:13–17. doi: 10.1016/j.jsr.2019.04.004

Table 2.

Nighttime passenger seat belt use, East Tennessee, March 2015–May 2017.

Variable	Category	No. passengers	Passenger seat belt use (%Yes)	Chi-square test P-value
Year	2015	11,438	83	< 0.001
	2016	14,120	87
	2017	7752	86
Driver seat belt use	Yes	28,822	92	< 0.001
Driver seat belt use	No	4488	42	< 0.001
Passenger sex	Male	11,775	79	< 0.001
Passenger sex	Female	21,535	89	< 0.001
Vehicle type	Car	14,650	87	< 0.001
	Pickup	5459	77
	SUV	10,073	88
	Van	3128	87
Driver sex	Male	22,172	86	0.700
Driver sex	Female	11,138	86	0.700