Table:

Summary of diffusion measurements (in 10⁻⁵ cm²/s) in boxers and normal controls

	FA				Dav (10−5 cm2/s)
	Controls (N = 19)	Boxer Overall (N = 49)	Boxer (Normal MRI) (N = 42)	Boxer (Abnormal MRI) (N = 7)	Controls (N = 19)	Boxer Overall (N = 49)	Boxer (Normal MRI) (N = 42)	Boxer (Abnormal MRI) (N = 7)
Splenium CC	0.87 ± 0.04	0.84 ± 0.04*	0.84 ± 0.04*	0.84 ± 0.04**	0.66 ± 0.04	0.65 ± 0.03	0.65 ± 0.04	0.64 ± 0.03**
Genu CC	0.83 ± 0.06	0.78 ± 0.04**	0.78 ± 0.04**	0.78 ± 0.05**	0.70 ± 0.04	0.71 ± 0.04	0.71 ± 0.04	0.69 ± 0.05**
Anterior IC	0.69 ± 0.06	0.67 ± 0.04	0.67 ± 0.03	0.67 ± 0.08**	0.58 ± 0.05	0.61 ± 0.03*	0.61 ± 0.03*	0.62 ± 0.05*
Posterior IC	0.75 ± 0.06	0.71 ± 0.04*	0.71 ± 0.03*	0.72 ± 0.06**	0.59 ± 0.06	0.62 ± 0.03*	0.62 ± 0.03*	0.61 ± 0.04**

Note:—FA indicates diffusion anisotropy; D_av, average diffusion constant; CC, corpus callosum; IC, internal capsule. Values are means (SD).

^*P < .05;

^**P < .005, compared with the normal controls.