Table 2.

Multivariate Cox analysis for OS in normal-weight patients.

Variable		HR (univariable)	HR (multivariable)
Age, y		1.02 (1.01-1.04, p=0.009)	1.03 (1.01-1.05, p=0.001)
Sex	Female	[Reference]	[Reference]
	Male	0.92 (0.61-1.37, p=0.668)	0.70 (0.39-1.28, p=0.250)
BMI, kg/m²		0.90 (0.81-1.01, p=0.082)	0.89 (0.77-1.01, p=0.081)
Tobacco	Never	[Reference]	[Reference]
	Former	1.28 (0.80-2.06, p=0.306)	1.54 (0.82-2.91, p=0.178)
	Current	0.94 (0.57-1.53, p=0.791)	1.31 (0.69-2.46, p=0.408)
Tumor location	Lower third	[Reference]	[Reference]
	Middle thrid	1.58 (1.04-2.41, p=0.034)	1.30 (0.83-2.02, p=0.249)
	Upper third	1.00 (0.54-1.83, p=0.990)	0.98 (0.52-1.86, p=0.962)
Tumor size, cm		1.19 (1.11-1.28, p<0.001)	1.04 (0.94-1.14, p=0.440)
Tumor grade	Poorly differentiated	[Reference]	[Reference]
	Well-moderately differentiated	0.56 (0.35-0.92, p=0.022)	0.72 (0.43-1.22, p=0.226)
TNM Stage	I	[Reference]	[Reference]
	II	2.59 (1.20-5.57, p=0.015)	2.61 (1.20-5.67, p=0.016)
	III	10.96 (5.63-21.35, p<0.001)	9.03 (4.47-18.25, p<0.001)
	IV	23.83 (9.00-63.07, p<0.001)	25.87 (9.19-72.83, p<0.001)
Postoperative complication	No	[Reference]	[Reference]
	Yes	1.35 (0.85-2.13, p=0.200)	1.09 (0.64-1.84, p=0.753)
Splenic volume	< 215 ml	[Reference]	[Reference]
	≥ 215 ml	1.55 (1.01-2.39, p=0.045)	1.86 (1.15-3.02, p=0.012)