Table 3. Association between seat belt use and child restraint system availability.

		Child restraint system availability				P-value
		Yes		No
		n	%	n	%
Seat belt use	Never	16	19.0	68	81.0	<0.001
	Rarely	24	27.3	64	72.7
	Sometimes	35	38.9	55	61.1
	Often	34	53.1	30	46.9
	Always	32	54.2	27	45.8