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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).

	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