Table 2.

Simple and multiple regression analysis

	B	Beta	95% CI	P value
Simple regression
Voluntary contraction*
Anal electrosensitivity	−0.043	−0.267	−0.071 to −0.016	0.002
Age	−0.006	−0.133	−0.013 to 0.002	0.13
Sex	0.730	0.459	0.482–0.978	< 0.001
Involuntary contraction
Anal electrosensitivity	−0.558	−0.043	−2.862 to 1.747	0.63
Age	0.431	0.128	−0.157 to 1.019	0.15
Sex	−0.050	0.000	−22.607 to 22.508	0.997
Multiple regression
Voluntary contraction
Anal electrosensitivity	−0.038	−2.36	−0.063 to −0.014	0.003
Sex	0.703	0.442	0.462–0.944	< 0.001

*Natural log transformation. Model fitness multiple regression: adjusted R ² = 0.254.