. 2017 Jul 31;5:e3615. doi: 10.7717/peerj.3615

Table 2. Comparison of pelvic floor ultrasound parameters between pregnant women with and without UI (n = 342).

	UI (n = 135)	Non-UI (n = 207)	F	P
R
α angle (°)	120.11 ± 15.63	118.53 ± 16.19	1.711	0.192
β angle (°)	66.94 ± 13.26	62.19 ± 11.43	11.271	0.001^*
γ angle (°)	80.09 ± 8.59	78.10 ± 8.53	2.928	0.088
BNVP (cm)	2.59 ± 0.51	2.66 ± 0.48	0.833	0.362
HA (cm²)	11.64 ± 2.51	10.65 ± 1.98	12.250	0.001^*
VM
α angle (°)	141.02 ± 16.44	137.07 ± 16.36	3.970	0.047^*
β angle (°)	105.84 ± 28.88	93.91 ± 21.16	15.429	<0.001^*
γ angle (°)	113.95 ± 15.60	110.03 ± 12.74	4.406	0.037^*
BNVP (cm)	1.01 ± 1.03	1.47 ± 0.73	17.005	<0.001^*
HA (cm²)	15.82 ± 3.53	13.24 ± 3.23	37.930	<0.001^*
VM-R
α angle (°)	20.92 ± 12.18	18.54 ± 14.25	0.815	0.367
β angle (°)	38.90 ± 27.01	31.72 ± 18.94	5.977	0.015^*
γ angle (°)	33.94 ± 14.72	31.93 ± 13.58	1.187	0.277
BNVP (cm) (BND)	1.59 ± 0.97	1.19 ± 0.69	14.459	<0.001^*
HA (cm²)	4.18 ± 2.85	2.59 ± 2.31	24.279	<0.001^*

Notes.

Significant difference between pregnant women with and without UI.