Visualization of Polypropylene and Polyvinylidene Fluoride Slings in Perineal Ultrasound and Correlation with Clinical Outcome

Table 3

Distance from the anterior wall of the urethra to the sling in cm.

	Mean (SD)	Min.	Max.	P value
Supine position
Rest
PVDF	1.05 (±0.37)	0.55	2.05	0.27
PP	0.89 (±0.23)	0.45	1.6
Contraction
PVDF	0.99 (±0.31)	0.61	1.6	0.14
PP	0.82 (±0.21)	0.32	1.27
Valsalva
PVDF	1.04 (±0.43)	0.55	2.29	0.22
PP	0.86 (±0.25)	0.4	1.44
Upright position
Rest
PVDF	0.94 (±0.25)	0.63	1.4	0.21
PP	0.83 (±0.19)	0.48	1.31
Contraction
PVDF	0.89 (±0.26)	0.55	1.67	0.13
PP	0.79 (±0.21)	0.45	1.39
Valsalva
PVDF	0.89 (±0.26)	0.35	1.35	0.12
PP	0.78 (±0.23)	0.4	1.36

SD: standard deviation; Min.: minimum value; Max.: maximum value; PVDF: polyvinylidene fluoride; PP: polypropylene.