TABLE 1.

Multivariable analysis of nine clinical characteristics in the SEER database.

	One year		Three years		Five years
Character	Hazard ratio (CI95)	P-value	Hazard ratio (CI95)	P-value	Hazard ratio (CI95)	P-value
Sex	0.98 (0.94–1.02)	0.241	NA (NA)	NA	0.94 (0.92–0.96)	<0.01
Lateral	NA (NA)	NA	1.38 (1.24–1.54)	<0.01	1.6 (1.47–1.75)	<0.01
T	1.47 (1.42–1.51)	<0.01	1.36 (1.33–1.38)	<0.01	1.28 (1.26–1.3)	<0.01
N	0.95 (0.9–1.01)	0.082	1.01 (0.98–1.05)	0.461	1.03 (1–1.06)	0.027
M	2.55 (2.43–2.67)	<0.01	2.67 (2.59–2.76)	<0.01	2.67 (2.6–2.75)	<0.01
Age	2.79 (2.68–2.91)	<0.01	1.94 (1.9–1.99)	<0.01	1.73 (1.7–1.77)	<0.01
LNR	1.35 (1.3–1.41)	<0.01	1.3 (1.26–1.34)	<0.01	1.28 (1.25–1.31)	<0.01
Grade	1.32 (1.27–1.37)	<0.01	1.18 (1.15–1.21)	<0.01	1.1 (1.08–1.13)	<0.01
Node_number	0.75 (0.72–0.79)	<0.01	NA(NA)	NA	1.1 (1.08–1.13)	<0.01