Measuring Urinary Sensation with Current Perception Threshold: A Comparison between Method of Limits and Method of Levels

Table 2

Comparison and correlation between threshold levels obtained by methods of levels and methods of limits.

	Method of levels mean (STD)	Method of limits mean (STD)	^†𝑃	Spearman’s rho
Preoperative (mA)
2000 Hz	1.70 (1.19)	2.09 (1.14)	0.0001	.934*
250 Hz	.65 (.37)	.80 (.40)	0.0001	.926*
5 Hz	.34 (.34)	.40 (.38)	0.008	.934*
Postoperative (mA)
2000 Hz	2.70 (.17)	2.95 (1.72)	0.0001	.984*
250 Hz	1.41 (1.12)	1.60 (1.24)	0.0001	.988*
5 Hz	1.15 (1.60)	1.32 (1.62)	0.0001	.961*

^†Wilcoxon Signed Rank Test; *𝑃<0.001.