Table IV.

PWC T8 motor root morphometric measurement results from 5 unaffected and 8 affected (four grade 2, one grade 3, and three grade 4) dogs.

PWC T8 Motor Roots	Unaffected	Affected	P value
Number of dogs	5	8
Average count of axons	3,676 ± 262	3,863 ± 691	0.57
Average endoneural CSA* (μm2)	308,081.54 ± 39,460.49	297,826.80 ± 55,818.72	0.72
Average area occupied by axons (μm2)	191,114.56 ± 35,453	179,168.71 ± 24,679.03	0.48
% of endoneural area occupied by axons	61.7% ± 6.1%	60.7 ± 5.8%	0.78
Average axon density count/mm2 )	12,165.08 ± 2,131	13,400.49 ± 3,874.93	0.53

^*CSA = Cross sectional area