Table 2.

Summary of correlations between observed changes before and after loss of response (LOR) and patient demographics.

Parameter 1	Parameter 2	Spearman’s Rho	Significance value, uncorrected
ERR	Age	0.10	0.60
ERR	BMI	0.09	0.66
MSE	Age	-0.28	0.15
MSE	BMI	0.22	0.25

The Spearman correlation between changes in the ellipse radius ratio (ERR, calculated from the shortest delay 4 ms) and multi-scale entropy (MSE) values before and after LOR (post – pre) with age and body-mass index (BMI) of patients used in the analysis is reported here. No correlations were significant.