Table 2.

Pearson’s correlation matrix considering the groups separately.

		External L. C.	Internal L. C.	Stress
Latency phase	External L. C.	1	−0.109	0.565 *
	Internal L. C.	−0.109	1	0.166
	Stress	0.565 *	0.166	1
Flare-up	External L. C.	1	−0.517 *	0.298
	Internal L. C.	−0.517 *	1	−0.276
	Stress	0.298	−0.276	1

* Correlation is significant at level 0.01 (bilateral).