Table 4. Univariable and Multivariable Cox Regression Analyses of Delta SMI and VAT Values to Evaluate Their Association with Disease-Free Survival.

Univariable Analysis
Variable		HR	95% CI		P	HR	95% CI		P
SMI (delta)		0.906	0.779	1.054	0.200
SMI		0.966	0.913	1.023	0.236
VAT (delta)						1.001	0.989	1.013	0.881
VAT						1.002	0.996	1.008	0.538

Variables including lymphovascular invasion, histologic grade, T stage, N stage, ER, PR, Ki-67 and chemotherapy were adjusted. CI = confidence interval, ER = estrogen receptor, HR = hazard ratio, PR = progesterone receptor, Ref = reference, SMI = skeletal muscle index, VAT = visceral adipose tissue area