Percutaneous sclerotherapy for venous malformations in the extremities: clinical outcomes and predictors of patient satisfaction

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Table 4 Univariate analysis of variables to predict satisfaction with sclerotherapy

Variables	Satisfaction	Non-satisfaction	P value
Patient demographics
Sex			0.051
Male	11	0
Female	21	8
Location of VM			0.333
Upper extremity	14	2
Lower extremity	18	6
Imaging variables
Maximum diameter of VM			0.018
<6.7 cm	19	1
≥6.7 cm	13	7
Margin on MRI			0.055
Limited	16	1
Infiltrating	16	7
Adjacent bone change			0.002
Absent	26	2
Present	6	6
Anatomical pattern of draining veins			0.361
Type 1	19	3
Type 2	8	2
Type 3	5	3
Procedure variables
Session number of sclerotherapy^a			0.014
<3	23	2
≥3	9	6
Sclerosants			0.32
Polidocanol only	22	4
Other	10	4