Synovial Sarcoma of the Head and Neck: A Single Institution Review

Table 3

Univariate Cox proportional-hazards model results.

Variable	PFS	OS
	HR (95% CI)	HR (95% CI)
Sex
Male	0.52 (0.19–1.47)	0.90 (0.25–3.20)
Female
Race
White	0.65 (0.25–1.71)	4.97 (0.65–37.83)
Other
Tumor size
≥5 cm	4.69 (1.34–16.38)	1.17 (0.38–3.58)
<5 cm
Subtype
Biphasic	0.72 (0.24–2.15)	0.097 (0.31–3.07)
Poorly differentiated	0.55 (0.07–4.33)	1 (0.12–8.29)
Monophasic
Surgical margin
Positive	0.50 (0.60–4.21)	0.97 (0.11–8.69)
Margin
Site
Neck	2.41 (1.00–5.82)	1.75 (0.64–4.85)
Others
Treatment
Local + systemic therapy	1.14 (0.45–2.91)	1.16 (0.39–3.46)
Definitive local therapy

PFS: progression-free survival; OS: overall survival; HR: hazard ratio; CI: confidence interval.