Table 3.

Multicovariate Cox regression

Clinical variable	Hazard ratio	95% Confidence interval	P value
PIK3CA variant allele frequency (≤8.5% versus >8.5%)	0.394	0.203-0.766	0.006
Cancer diagnosis (breast versus other)	0.276	0.144-0.529	0.0001
Serum albumin (≥3.5 g/ml versus <3.5 g/ml)	0.129	0.035-0.467	0.002
KRAS comutations (no comutation versus comutation)	0.851	0.393-1.843	0.682