Pelvic floor parameters predict postpartum stress urinary incontinence: a prospective MRI study

Insights into Imaging

Table 4 Comparison of urethral mobility and urethral sphincter function

		PSUI group	PC group	NC group	p value
AUA (°)	Rest	8.2 ± 13.4^b	3.6 ± 11.0	-1.8 ± 13.7	0.006^*
AUA (°)	Strain	63.2 ± 22.3^a,b	36.5 ± 25.0^b	20.8 ± 24.5	< 0.001^*
BND (mm)	-	18.8 ± 6.5^a,b	12.5 ± 8.1	9.1 ± 7.2	< 0.001^*
RVA (°)	Rest	151.1 ± 18.4	146.9 ± 19.5	143.3 ± 11.6	0.113
RVA (°)	Strain	188.9 ± 21.2^a,b	163.2 ± 18.7	151.4 ± 15.0	< 0.001^*
FUL (mm)	Rest	24.5 ± 3.7^a,b	26.1 ± 2.6	27.8 ± 3.2	< 0.001^*
FUL (mm)	Strain	17.4 ± 4.0^a,b	23.7 ± 3.3	24.9 ± 3.2	< 0.001^*
Bladder funnel (%)	Strain	88.5 (46/52)	23.5 (12/51)	13.3 (4/30)	< 0.001^*

AUA Anterior angle of the urethra, BND Bladder neck descent, RVA Retrovesicourethral angle, FUL Functional urethral length
^*represents statistical significance
^arepresents statistical difference compared with the PC group, and
^brepresents statistical difference compared with the NC group