TABLE 3.

Survey Responses for Single-Sport Specialization Questions^a

	All Players	Non-US	US	P
No. of responses	1673	515	1106
Age, y	23.60 ± 8.63	21.37 ± 3.41	24.57 ± 10.05	<.001
Age at which player first started to participate in competitive sports, y	6.85 ± 3.10	8.93 ± 3.77	5.91 ± 2.16	<.001
Quit other sports during childhood/adolescence to play only baseball, n (%)	717 (44.5)	225 (44.1)	489 (44.5)	.829
Age at which player quit other sports to focus on baseball, y	14.09 ± 2.79	12.30 ± 3.07	14.89 ± 2.24	<.001

^aValues are presented as mean ± SD unless otherwise indicated. Bolded values indicate a statistically significant difference. Percentages are presented based on the number of responses for each individual question.