Table 1.

Demographic characteristics of the athletes.

		HBOT Group		Control Group		p-value
		(n=20)		(n=21)
		n	%	n	%
Gender	male	20		21		0.218
Age (years)		23.9 ± 5.1		26.3 ± 5.6		0.254
Level of play						0.310F
	professional	11	52	12	57
	amateur	10	48	9	43
Defensive position						0.658
	pitcher	13	65	15	71.4
	fielder	7	35	6	28.6
Internal diseases						0.410F
	Yes	4	20	2	9.5
	No	16	80	18	90.5
Surgical history						1.000F
	Yes	1	5	1	4.8
	No	19	95	19	95.2

Note. M: Mann-Whitney U test, F: Fisher's exact test, else Chi-square test.