TABLE 2:

Statistical tests in volunteer

	Average	SD	Median	Minimum	Maximum	MD	P Value
FA	0.748	0.027	0.743	0.700	0.800	7
Cervical	0.748	0.031	0.747	0.700	0.780	1	.86
High thoracic	0.751	0.027	0.740	0.720	0.800	2	.67
Low thoracic	0.745	0.027	0.74	0.714	0.800	4	–
ADC (%10⁻³)	1.00	0.130	1.00	0.77	1.25	7
Cervical	1.01	0.157	1.02	0.77	1.25	1	.36
High thoracic	0.96	0.104	0.93	0.81	1.13	2	–
Low thoracic	1.05	0.111	1.06	0.89	1.19	4	.15

Note.—Comparison of FA and ADC values according to medullar level on healthy volunteers doesn’t show a statistically significant difference. SD = standard deviation; MD = patient distribution (number of patients).