Table 4.

Multivariate analysis of progression free survival.

Parameter	p	HR	HR 95% Lower	HR 95% Upper
CEA: >5 ng/L vs. ≤ 5 ng/L	0.0070	5.11	1.56	16.71
KRAS: Mutated vs. Wild-type	0.1883	1.41	0.84	2.36
baseline SMI: ≥52.4M, 38.5F vs. <52.4M, 38.5F	0.1362	0.68	0.40	1.13

Abbreviations: M—male; F—Female; SMI—skeletal muscle index; CEA—carcinoembryonic antigen; HR—hazard ratio; NS—not significant.