Figure 2: Sensory threshold in LPE and APE group. Sensory threshold of (a) warm, (b) cold, and (c) vibration in each location. The dot indicates the median and the whiskers indicate lower and upper quartile. No significant difference between LPE and APE group (Wilcoxon rank-sum test). LPE: lifelong premature ejaculation; APE: acquired premature ejaculation.