Table 5:

IOA for each of the findings in the posterior compartment on the barium and MR proctography.

Finding	Barium proctography		MRI proctography
	Weighted Kappa	P-value	Weighted Kappa	P-value
Rectocele	0.729	<0.001	0.386	0.004
Pelvic cavity widening	0.38	0.16	0.48	0.16
Pelvic floor descent	0.46	<0.001	0.44	<0.001
M line - >2 cm	0.61	<0.001	0.61	0.125
Anorectal angle	0.446–0.575	<0.001	0.652–0.84	0.02
Anal canal length	-		0.608–0.838	<0.001
Intra-rectal intussusceptions	0.119	0.308	0.028	0.766
Rectal prolapse	0.655	<0.001	-
Puborectalis thickness	-		0.65	<0.001
Defect in puborectalis	-		0.0	1.0
Cystocele	-		0.83	<0.001
Urethral descent	-		0.64	<0.001
Urethral funneling	-		0.048	0.507
Peritoneocele	-		1.0	<0.001
Uterine prolapse	-		0.85	<0.001

IOA: Inter-observer agreement, MR: Magnetic resonance, MRI: Magnetic resonance imaging