Clinical Study
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) | † | 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* |
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†Wilcoxon Signed Rank Test; *.
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