Association of the second birth mode of delivery and interval with maternal pelvic floor changes: a prospective cohort study

Table 3 Effect of interval time between second births on pelvic function

Pelvic function indicators	Model ^a	B (95% CI) ^#	P
Hiatus area (cm²)	All	-0.17 (-0.25, -0.08)	< 0.001
	Vaginal delivery	-0.24 (-0.39, -0.09)	0.002
	Cesarean section	-0.07 (-0.17 0.03)	0.148
Bladder neck (mm) (rest)	All	0.22 (0.08, 0.35)	0.001
	Vaginal delivery	0.28 (0.05, 0.51)	0.018
	Cesarean section	0.17 (-0.0004, 0.34)	0.051
Bladder neck (mm) (Fall’s)	All	0.85 (0.65, 1.05)	< 0.001
	Vaginal delivery	1.04 (0.67, 1.40)	< 0.001
	Cesarean section	0.74 (0.50, 0.97)	< 0.001

a: indicates that variables such as age, second birth weight and pre pregnancy BMI were adjusted

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