Pelvic floor structural changes during the first singleton pregnancy and the risk factors of stress urinary incontinence

Table 4 Pelvic floor ultrasonic parameters in SUI and non-SUI

	1st trimester		P	2nd trimester		P	3rd trimester		P
	SUI	No-SUI		SUI	No-SUI		SUI	No-SUI	P
At Rest
transverse diameter	32.05 ± 2.55	32.56 ± 4.64	0.776	34.47 ± 3.63	34.86 ± 3.17	0.588	36.28 ± 4.22	35.86 ± 4.94	0.601
AP diameter	48.10 ± 4.22	47.23 ± 5.25	0.669	52.75 ± 5.01	51.23 ± 6.21	0.253	54.06 ± 6.89	55.06 ± 5.85	0.372
HA	11.06 ± 1.56	11.29 ± 1.98	0.765	13.62 ± 2.21	13.09 ± 2.00	0.246	14.37 ± 2.70	14.36 ± 2.33	0.980
angle of pubic arch	266.2 ± 10.98	262.14 ± 12.73	0.373	263.55 ± 9.78	264.63 ± 10.48	0.638	263.49 ± 11.87	264.86 ± 9.84	0.475
VALSALVA
transverse diameter	36.00 ± 3.96	36.12 ± 4.92	0.948	37.74 ± 4.22	38.69 ± 5.20	0.393	41.05 ± 5.24	39.45 ± 5.74	0.098
AP diameter	48.90 ± 3.23	51.34 ± 7.92	0.419	61.77 ± 6.63	58.58 ± 9.95	0.125	61.38 ± 8.50	59.81 ± 8.18	0.283
HA	13.17 ± 1.37	13.85 ± 3.69	0.628	17.76 ± 3.20	17.04 ± 4.90	0.481	19.31 ± 4.82	17.96 ± 4.22	0.117
angle of pubic arch	266.5 ± 10.94	259.66 ± 25.03	0.469	264.74 ± 11.65	262.94 ± 12.89	0.519	262.09 ± 12.31	263.62 ± 10.55	0.447
PFMC
transverse diameter	29.58 ± 3.59	29.62 ± 4.40	0.981	31.03 ± 2.34	31.94 ± 3.05	0.159	33.74 ± 4.25	32.22 ± 4.41	0.048
AP diameter	42.42 ± 5.56	41.23 ± 5.83	0.598	47.35 ± 4.83	45.46 ± 6.18	0.153	46.74 ± 6.58	46.66 ± 4.65	0.933
HA	9.13 ± 1.77	8.93 ± 1.90	0.786	11.05 ± 1.64	10.66 ± 1.86	0.329	19.21 ± 4.82	17.96 ± 4.22	0.145
angle of pubic arch	265.46 ± 6.24	263.29 ± 15.66	0.716	265.24 ± 13.55	266.84 ± 10.81	0.527	262.50 ± 12.96	265.65 ± 12.12	0.153

ISSN: 1471-2393