Table 3.

Univariate and multivariate Cox regression analysis of predictors of recurrence-free survival

	Univariate analysis			Multivariate analysis
	HR	95% CI	p value	HR	95% CI	p value
Sex
Male	1.316	0.506–3.424	0.573
Female	Ref
Age, years
<45	Ref
>45	1.750	0.664–4.609	0.258	1.621	0.512–5.130	0.411
Diameter
<4.5 cm	Ref			Ref
>4.5 cm	2.864	0.764–10.736	0.119	1.418	0.334–6.016	0.636
Site
Trunk	1.011	0.354–2.886	0.983
Other locations	Ref
Fibrosarcomatous
Yes	8.839	3.285–23.783	<0.001	9.476	2.607–34.438	<0.001
No	Ref			Ref