Table 2.

Univariate cox regression analysis of PFS and OS

	PFS			OS
	HR	95% CI	P‐value	HR	95% CI	P‐value
Age, <60 vs ≧60	1.3	0.6–2.9	0.46	1.4	0.5–3.9	0.54
Gender, M vs F	1.2	0.6–2.6	0.56	2.4	0.8–10.5	0.25
Stage, T1 vs T2 + 3+4	3.4	1.6–7.5	<0.001	2.8	1.1–8.2	0.037
Nuclear grade, G1 + 2 vs G3 + 4	5.2	2.4–11.1	<0.001	5.3	1.8–14.9	0.003
CD44, negative vs positive	1.9	0.8–4.2	0.14	1.3	0.4–3.6	0.68

CI, confidential interval; HR, hazard ratio; OS, overall survival; PFS, progression free survival.