Biofeedback pelvic floor muscle training versus posterior tibial nerve electrostimulation in treatment of functional obstructed defecation: a prospective randomized clinical trial

Egyptian Rheumatology and Rehabilitation

Table 4 Comparison between both groups regarding improvement in different outcome measures

Outcomes measures	BF group (n = 21 patients) [n (%)]	PTNS group (n = 20 patients) [n (%)]	Test of significance^a	P
Primary outcome measure
MODS improvement	17(81.0)	8(40.0)	7.220	0.011*‡
Secondary outcome measures
PAC-QoL improvement	16(76.2)	6(30.0)	8.789	0.005*
Time of toileting improvement	12(57.1)	8(40.0)	1.205	0.354‡
Maximum straining anal pressure improvement	5(23.8)	0(0)	5.423	0.048*‡

MODS Modified obstructed defecation score, PAC-QoL Patient Assessment of Constipation-Quality of life questionnaire, BF Biofeedback pelvic floor muscle training, n Number of patients, n (%) Number (percentage) of patients, PTNS Posterior tibial nerve electrostimulation, NA Not applicable
*P ≤ 0.05 is considered significant
^‡Value of P of Fisher’s exact test
^aValue of chi-square test