Biofeedback pelvic floor muscle training and posterior tibial nerve electrostimulation for treatment of faecal incontinence: monotherapy versus combined therapy: a prospective randomized trial

Bulletin of the National Research Centre

Table 3 Comparison between the three groups regarding frequency of improvement in outcome measures

Outcomes measures	BF Group (n = 20 patients) n(%)	PTNS Group (n = 20 patients) n(%)	Combined Group (n = 20 patients) n(%)	Test of significance (X²)	P
Primary outcome measure
Wexner Faecal Continence scale improvement	11(55.0)	6(30.0)^‡	14(70.0)^‡	6.541	0.038*
Secondary outcome measures
Maximal squeezing anal pressure improvement	6(30.0)^†	0(0)^†‡	10(50.0)^‡	12.955	0.002*
Maximal voluntary anal contraction time improvement	13(65.0)	8(40.0)^‡	17(85.0)^‡	8.756	0.013*
Patient global assessment of effect of FI on quality of life	9(45.0)	4(20.0)^‡	15(75.0)^‡	12.188	0.002*

FI faecal incontinence; BF biofeedback pelvic floor muscle training; PTNS transcutaneous posterior tibial nerve electrostimulation; n number of patients; n(%)number (percentage) of patients; X² value of Chi-square test
^*Significant P < 0.05
^†Statistical significant difference between BF group and PTNS group (P < 0.05)
^‡Statistical significant difference between PTNS group and combined group (P < 0.05)