Magnetic resonance defecography assessment of obstructed defecation syndrome in patients with chronic constipation in a tertiary care hospital

Table 7 Patient distribution by pelvic floor widening according to the H-line and M-line (n = 57)

The H-line, M-line, organ prolapse parameters	Resting			Defecation			P value
	n	%	mean ± SD	n	%	mean ± SD
H-line in cm
Grade 0	40	70.2	5.28 ± 1.43 (3.20-7.90)	12	21.1	7.56 ± 1.69 (4.40-12.20)	0.001
Grade 1	17	29.8		19	33.3
Grade 2	0	0.0		25	43.9
Grade 3	0	0.0		1	1.8
M-line
Grade 0	33	57.9	1.93 ± 1.07 (0.20-3.90)	3	5.3	5.17 ± 2.28 (1.0-9.60)	0.001
Grade 1	24	42.1		16	28.1
Grade 2	0	0.0		20	35.1
Grade 3	0	-		18	31.6
Cystocele
Grade 0	57	100		20	35.1		0.001
Grade 1	-	-		28	49.1
Grade 2	-	-		6	10.5
Grade 3	-	-		3	5.3
Uterine/vaginal prolapse
Grade 0	37	100		15	40.5		0.001
Grade 1	-	-		17	45.9
Grade 2	-	-		5	13.5
Grade 3	-	-		-	-

Level of significance was set at P < 0.05. P value was determined by the χ² test.