TABLE 2.

The non-parametric correlations (Kendall’s Tau-B and p-values) between the variables.

	Tx effect on PSI	Component 1	Component 2	Component 3
Tx Effect on PSI	1
Component 1	0.620 **	1
	p < 0.001
Component 2	0.539 **	0.539 **	1
	p = 0.002	p = 0.002
Component 3	0.620 **	0.239	0.264	1
	p < 0.001	p = 0.163	p = 0.124

** p-value < 0.005.