Hypothesized summative anal physiology score correlates but poorly predicts incontinence severity

Table 4 Distribution of anal physiology score variables by gender

	Men	Women	P value	Mean reference range
Maximum RP (mmHg)				Men: 50-80
Mean	51.0 (SD 23.2)	38.8 (SD 15.6)	< 0.0001	Women: 30-60
Median	52.0 (IQR 33.5)	38.0 (IQR 22.5)
ACL (cm)				Men: 2.5-3.5
Mean	1.7 (SD 1.4)	0.7 (SD 0.8)	< 0.0001	Women: 2.0-3.0
Median	2.0 (IQR 2.8)	0.5 (IQR 1.0)
IAS defect
Intact	61 (68.5)	286 (68.3)	0.7	-
≤ ¼ defect	0 (0.0)	4 (1)	(c2 = 2.4, df = 4 )
> ¼, ≤ ½	12 (13.5)	49 (11.7)
> ½, ≤ ¾	2 (2.2)	21 (5.0)
> ¾	14 (15.7)	59 (14.1)
EAS defect
Intact	85 (95.5)	305 (73.0)	< 0.0001	-
≤ ¼ defect	0 (0.0)	2 (0.5)	(c2 = 21.7, df = 4)
> ¼, ≤ ½	2 (2.2)	62 (14.8)
> ½, ≤ ¾	1 (1.1)	36 (8.6)
> ¾	1 (1.1)	13 (3.1)
Pudendal Neuropathy
Normal	70 (78.7)	191 (45.6)	< 0.0001
Unilateral	3 (3.4)	67 (16.0)	(c2 = 43.1, df=2)	2.20 ms
Bilateral	6 (6.7)	137 (32.7)
Mean CCCS	5.9	8	0.001	-

CCCS: Cleveland Clinic Continence Scores; ACL: Anal canal length.