Table 3.

Scores (mean ± standard deviation) and comparisons between groups (CS and PFS) at the pretreatment time point.

	Pretreatment values
	CS	PFS	Mean difference (CS–PFS)	p	95 % CI
					Inferior	Superior
VCSS	18.04 ± 4.52	20.33 ± 6.53	-2.29	0.019	-4.35	-0.24
VEINES-QoL	64.62 ± 11.12	64.48 ± 11.02	0.24	>0.999	-4.22	4.69
VEINES-Sym	61.93 ± 15.78	59.29 ± 15.57	2.81	>0.999	-3.21	8.83

CS, Conventional Surgery; PFS, Polidocanol Foam Sclerotherapy; 95 % CI, Confidence Interval.

For the statistical analysis, a generalized estimating equation with a normal distribution and identity link function was used, assuming an AR(1) correlation matrix between the time points and Bonferroni multiple comparisons.