Clinical value of positive BET and pelvic floor dyssynergia in Chinese patients with functional defecation disorder

Figures & data

Table 1. Demographic data.

	Consistent Group (n= 283)	Inconsistent Group (n= 52)	t/Z	P
BMI	22.42 ± 2.86	21.78 ± 2.68	1.357	.177
Constipation Duration	5.00 (8.00)	7.00 (6.25)	−1.603	.109
Water Intake	2.00 (2.00)	2.00 (0.50)	−0.70	.484
Sleep quality	2.00 (2.00)	2.00 (1.00)	−0.234	.815
Exercise frequency	1.00 (2.00)	2.00 (2.00)	−1.067	.286

Table 2. HR-ARM variables of Consistent Group and Inconsistent Group in Total FDD patients.

Total FDD patients	BET consistent with PFD (n = 283)	BET inconsistent with PFD (n = 52)	t/Z	p Value
Anal resting pressure (mm Hg)	85.50 (31.5)	87.95 (39.47)	0.578	.563
Anal sphincter length (cm)	3.80 (1.30)	3.35 (1.08)	3.048	.002
Duration of sustained squeeze (s)	19.20 (10.10)	17.75 (8.70)	0.872	.383
Maximum squeeze pressure (mm Hg)	223.00 (101.10)	213.95 (69.63)	0.427	.669
Rectal defecation pressure (mm Hg)	37.80 (24.80)	31.10 (17.00)	1.558	.119
Anal residual pressure (mm Hg)	99.30 (38.40)	63.55 (26.38)	7.355	<.001
First sensation volume (mL)	40.00 (30.00)	40.00 (31.25)	0.50	.617
Urge to defecate (mL)	100.00 (70.00)	100.00 (50.00)	0.943	.346
Maximum tolerable volume (mL)	150.00 (110.00)	150.00 (73.75)	0.433	.665
Anal relaxation rate (%)	−10.15 (43.64)	28.55 (29.93)	8.393	<.001
RAPG (mm Hg)	−61.61 ± 34.06	−30.69 ± 24.71	6.248	<.001
MDI	0.38 (0.28)	0.49 (0.33)	3.635	<.001

RAPG: rectal and anal pressure gradient; MDI: manometric defecation index.

Table 3. HR-ARM Variables of Consistent Group and Inconsistent Group in IDP.

IDP	BET consistent with PFD (n = 159)	BET inconsistent with PFD (n = 38)	t/Z	p Value
Anal resting pressure (mm Hg)	89.10 (35.60)	81.25 (44.25)	0.288	.773
Anal sphincter length (cm)	3.80 (1.30)	3.45 (1.08)	1.921	.055
Duration of sustained squeeze (s)	20.00 (10.40)	18.60 (8.98)	0.709	.478
Maximum squeeze pressure (mm Hg)	225.50 (93.10)	211.00 (78.32)	0.553	.581
Rectal defecation pressure (mm Hg)	31.20 (19.80)	31.30 (16.15)	0.879	.380
Anal residual pressure (mm Hg)	98.35 ± 30.98	69.95 ± 24.04	4.95	<.001
First sensation volume (mL)	40.00 (30.00)	40.00 (35.00)	0.004	.997
Urge to defecate (mL)	100.00 (70.00)	100.00 (66.25)	0.042	.966
Maximum tolerable volume (mL)	150.00 (100.00)	165.00 (120.00)	0.451	.652
Anal relaxation rate (%)	−6.33 (34.70)	−21.02 (27.90)	5.836	<.001
RAPG (mm Hg)	−68.83 ± 32.55	−38.47 ± 22.62	5.083	<.001
MDI	0.31 (0.20)	0.40 (0.27)	4.414	.003

RAPG: rectal and anal pressure gradient; MDI: manometric defecation index.

Table 4. HR-ARM Variables of Consistent Group and Inconsistent Group in DD.

DD	BET consistent with PFD (n = 124)	BET inconsistent with PFD (n = 14)	t/Z	p Value
Anal resting pressure (mm Hg)	83.90 (30.83)	84.70 (31.22)	0.032	.975
Anal sphincter length (cm)	3.80 (1.10)	3.25 (1.12)	1.581	.114
Duration of sustained squeeze (s)	18.85 (8.83)	18.10 (8.73)	0.638	.523
Maximum squeeze pressure (mm Hg)	229.55 (110.67)	211.65 (78.58)	0.063	.949
Rectal defecation pressure (mm Hg)	52.45 (25.38)	55.00 (32.90)	0.448	.654
Anal residual pressure (mm Hg)	109.08 ± 38.38	79.51 ± 34.57	3.45	.001
First sensation volume (mL)	40.00 (27.50)	40.00 (23.00)	1.053	.292
Urge to defecate (mL)	100.00 (67.50)	80.00 (60.00)	2.017	.044
Maximum tolerable volume (mL)	150.00 (100.00)	130.00 (78.75)	1.297	.195
Anal relaxation rate (%)	−17.97 (49.29)	17.51 (48.25)	3.498	<.001
RAPG (mm Hg)	−49.14 ± 30.97	−17.34 ± 30.21	3.651	<.001
MDI	0.54 (0.30)	0.80 (0.58)	3.001	.003

RAPG: rectal and anal pressure gradient; MDI: manometric defecation index.

Table 5. Constipation symptoms of patients with FDD.

Constipation Symptoms	Consistent Group (n= 128)	Inconsistent Group (n= 49)	t/Z	p Value
SBMs	2.00 (4.00)	1.50 (3.00)	0.847	.397
Bristol Stool Type	2.00 (3.00)	2.00 (3.00)	0.027	.978
Defecation Duration	3.00 (1.00)	2.00 (1.00)	1.067	.286
PAC-SYM
Abdominal Symptoms	1.00 (1.00)	1.00 (1.00)	0.564	.573
Rectal Symptoms	0.33 (1.00)	0.33 (0.84)	0.737	.461
Defecation Symptoms	2.40 (1.20)	2.00 (1.20)	2.312	.021
Total Score	1.42 (0.75)	1.42 (0.75)	1.754	.079

SBMs: spontaneous bowel movements; PAC-SYM: patient assessment of constipation symptom.

Table 6. Constipation related QOL of patients with FDD.

PAC-QOL	Consistent Group (n= 128)	Inconsistent Group (n= 49)	t/Z	p Value
Physical Discomfort	1.50 (1.00)	1.00 (1.13)	−2.578	.01
Psychosocial Discomfort	1.00 (1.12)	1.00 (1.00)	−0.325	.745
Worry/Anxiety	1.73 ± 0.94	1.53 ± 0.89	1.296	.198
Satisfaction	3.00 (1.20)	2.80 (1.40)	−1.498	.134
Total score	1.70 ± 0.67	1.57 ± 0.67	1.174	.244

PAC-QOL: patient assessment of constipation quality of life.