Table 3.

Univariate and Multivariable Cox Regression Analyses of Risk Factors for Survival

	Univariate		Multivariable
	3 Years Disease-free Survival Outcomes
	HR (95%)	P	HR (95%)	P
Procedure (SILS + 1 vs. CLS)	1.36(0.62–2.96)	0.77	1.10 (0.49–2.41)	0.82
Sex(Male vs. Female)	1.25(0.57–2.76)	0.58	0.96(0.43–2.12)	0.91
Age(≤60 vs. >60)	0.89(0.41–1.94)	0.73	1.08(0.49–2.37)	0.84
T stage(T1 + T2 vs. T3 + T4)	4.32(1.02–18.28)	0.047	2.51(0.58–10.89)	0.22
N Stage (N0 vs. N+)	8.22(3.10-21.83)	<0.001	7.10(2.61–19.29)	<0.001
	5 Years Overall Survival Outcomes
	HR (95%)	P	HR (95%)	P
Procedure (SILS + 1 vs. CLS)	1.53(0.74–3.18)	0.25	1.29(0.61–2.71)	0.50
Sex(Male vs. Female)	1.02(0.49–2.11)	0.94	0.79(0.38–1.64)	0.53
Age(≤60 vs. >60)	0.95(0.46–1.95)	0.88	1.11(0.54–2.31)	0.77
T stage(T1 + T2 vs. T3 + T4)	2.35(0.82–6.72)	0.11	1.39(0.47–4.11)	0.56
N Stage (N0 vs. N+)	6.61(2.84–15.42)	<0.001	6.24(2.59–15.04)	<0.001

Abbreviation: HR, hazard ratio