Regression summary for dependent variable: Number of tract on ALS patients in relation with (b) ALSFRS-R score.

Table 4b: Regression summary for dependent variable: Number of tract on ALS patients in relation with (b) ALSFRS-R score.

Left corticospinal tract	R = 0.48232575 R2 = 0.23263813 Adjusted R2 = ----- F (1,3) = 0.90950 p < 0.41060 Std Error of estimate: 352.86
		b	Std Error	t	P
	ALSFRS-R score	382.22	1258.75	0.30	0.78
Right corticospinal tract	R = 0.68003288 R2 = 0.046244472 Adjusted R2 = 0.28325963 F (1,3) = 2.5808 p < 0.20652 Std Error of estimate: 222.95
		b	Std Error	t	p
	ALSFRS-R score	5578	17.00	3.27	0.04^*
Left Arcuate fascicle	R = 0.34705073 R2 = 0.12044421 Adjusted R2 = ----- F (1,3) = 0.41081 p < 0.56716 Std Error of estimate: 292.37
		b	Std Error	t	p
	ALSFRS-R score	846.19	1042.95	0.81	0.47
Right Arcuate fascicle	R = 0.47990701 R2 = 0.23031073 Adjusted R2 = ----- F (1,3) = 0.89768 p < 0.41330 Std Error of estimate: 264.55
		b	Std Error	t	p
	ALSFRS-R score	71.77	795.30	-0.09	0.93
Left optic radiation	R = 0.06038905 R2 = 0.00364684 Adjusted R2 = ----- F (1,3) = 0.01098 p < 0.92316 Std Error of estimate: 485.29
		b	Std Error	t	p
	ALSFRS-R score	572.02	1731.13	0.33	0.76
Right optic radiation	R = 0.47990701 R2 = 0.23031073 Adjusted R2 = ----- F (1,3) = 0.89768 p < 0.41330 Std Error of estimate: 264.55
		b	Std Error	t	p
	ALSFRS-R score	1520.27	943.71	1.61	0.20

Notice it diminishes when ALSFRS-R score is worse on right cortico-spinal tract. It is not significate on the rest of evaluated tracts