Table 2. Univariate and multivariate analyses for constipation occurrence in the entire cohort.

Characteristics		Non-constipation (n = 898)	Constipation (n = 247)	Univariate		Multivariate
				OR (95% CI)	P	OR (95% CI)	P
Bladder neck hypermobility (%)	No	282 (31.4)	78 (31.6)	Reference
	Yes	616 (68.6)	169 (68.4)	0.99 (0.73–1.34)	0.958
Vesicocele (%)	No	337 (37.5)	91 (36.8)	Reference
	Yes	561 (62.5)	156 (63.2)	1 (0.77–1.38)	0.844
Uterine prolapse (%)	No	580 (64.6)	154 (62.3)	Reference
	Yes	318 (35.4)	93 (37.7)	1.1 (0.82–1.47)	0.516
Rectocele (%)	No	848 (94.4)	223 (90.3)	Reference
	Yes	50 (5.6)	24 (9.7)	1.8 (1.1–3.04)	0.020	1.82 (1.07–3.01)	0.023
Perineal hypermobility (%)	No	537 (59.8)	153 (61.9)	Reference
	Yes	361 (40.2)	94 (38.1)	0.91 (0.68–1.22)	0.542
Rupture of the levator ani muscle (%)	No	878 (97.8)	240 (97.2)	Reference
	Yes	20 (2.2)	7 (2.8)	1.3 (0.54–3.06)	0.579
Rupture of the anal sphincter (%)	No	892 (99.3)	244 (98.8)	Reference
	Yes	6 (0.7)	3 (1.2)	1.8 (0.45–7.36)	0.396
Levator ani hiatus dilation (%)	No	290 (32.3)	67 (27.1)	Reference
	Yes	608 (67.7)	180 (72.9)	1.3 (0.94–1.75)	0.121
Levator ani hiatus area (cm2, median (IQR))		22.75 [18, 28]	24 [19.85, 29]	1 (1–1.04)	0.048	1.01 (0.99–1.03)	0.449
Position of the bladder at rest (mm, median (IQR))		29 [27, 31]	29 [27, 31]	1 (0.96–1.04)	0.869
Position of the bladder at VM (mm, median (IQR))		−3 [−10, 9]	−2 [−9.5, 10]	1 (0.99–1.01)	0.569
Position of the uterus at VM (mm, median (IQR))		6 [−2, 14]	5 [−1, 9]	0.99 (0.98–0.999)	0.033	0.99 (0.98–1.00)	0.154
Position of the rectum at VM (%)	Up	122 (13.6)	23 (9.3)	Reference
	Down	776 (86.4)	224 (90.7)	1.5 (0.96–2.45)	0.075	1.31 (0.81–2.17)	0.285
Bladder descent (mm, median [IQR])		32 [22, 40]	31 [21, 40]	1 (0.99–1.01)	0.599

Notes.

OR

odds ratio

VM

maximal Valsalva maneuver

up/down

the position of the pelvic organs is either above or below the pubic symphysis.