TABLE I.

Patient Demographic Characteristics and Time to Follow-up

	All Patients	Nonoperatively Treated Group	Operatively Treated Group	P Value
Female sex	35%	39%	33%	0.639
Left laterality	57%	58%	56%	1.000
Age at injury* (yr)	14.9 ± 2.1	13.5 ± 1.8	16.0 ± 1.7	<0.001
Follow-up† (yr)	3.8 (1.0 to 10.1)	3.5 (1.4 to 10.1)	4.2 (1.0 to 9.9)	0.440
Age at follow-up* (yr)	19.3 ± 3.4	17.6 ± 2.7	20.7 ± 3.3	<0.001

^*The values are given as the mean and the standard deviation.

^†The values are given as the median, with the range in parentheses.