Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

Table. 1.

Comparison of the Baseline Clinical Characteristics Between the Responders to Biofeedback Therapy and Non-responders

Characteristics BFT responders (n = 55) BFT non–responders (n = 16) P-value
Age (yr) 58 (48-68) 56 (44-70) 0.910
BMI (kg/m2) 21.4 (19.6-24.8) 24.1 (21.3-26.4) 0.100
Underlying disease
Diabetes mellitus 6 (10.9) 4 (25.0) 0.220
Parkinson’s disease 2 (3.6) 1 (6.3) 0.540
Cerebral infarction 1 (1.8) 1 (6.3) 0.400
Lower abdominopelvic surgery 5 (9.1) 2 (12.5) 0.650
Spinal surgery 5 (9.1) 3 (18.8) 0.370
Hysterectomy 5 (9.1) 3 (18.8) 0.370
Hemorrhoidectomy 8 (14.5) 3 (18.8) 0.700
Use of laxative 10 (18.2) 3 (18.8) > 0.999
Symptom duration (yr) 9 (2-20) 10 (2-28) 0.410
Number of BFT sessions 4 (3-4) 4 (4-5) 0.120
Baseline symptoms
Bowel movements < 3/wk 21 (38.2) 8 (50.0) 0.400
Hard stool ≥ 25% 20 (36.4) 3 (18.8) 0.190
Manual maneuvers to facilitate defecation ≥ 25% 12 (21.8) 2 (12.5) 0.500
Straining, VASa 8 (5-10) 7 (5-10) 0.520
Sensation of incomplete evacuation, VASa 5 (3-8) 5 (4-9) 0.860
Sensation of anorectal obstruction, VASa 3 (0-9) 6 (5-9) 0.090
GBSb 3 (0-5) 5 (1-6) 0.050
Symptoms immediately after BFT
Bowel movements < 3/wk 4 (7.3) 6 (37.5) 0.010
Hard stool ≥ 25% 2 (3.6) 0 (0.0) > 0.999
Manual maneuvers to facilitate defecation ≥ 25% 2 (3.6) 1 (6.3) 0.540
Straining, VASa 5 (4-6) 7 (5-10) 0.030
Sensation of incomplete evacuation, VASa 2 (0-4) 5 (4-8) < 0.01
Sensation of anorectal obstruction, VASa 0 (0-0) 5 (0-7) < 0.01
GBSb 8 (6-8) 5 (1-7) < 0.01
Willingness to participate 7 (5-8) 6 (5-8) 0.240
Slow transit constipation 33 (60.0) 8 (50.0) 0.720
Balloon expulsion time (sec) 15 (6-300) 31 (11-300) 0.150
Delayed balloon expulsion 19 (34.5) 7 (43.8) 0.500

a0: absent, 10: severe.

b0: dissatisfaction, 10: satisfaction.

BMI, body mass index; BFT, biofeedback therapy; VAS, visual analog scale; GBS, global bowel satisfaction.

Data are presented as median (interquartile range) or n (%).

J Neurogastroenterol Motil 2022;28:608~617 https://doi.org/10.5056/jnm21137
© J Neurogastroenterol Motil