Table 1

Multivariable Cox regression analysis of candidate mutation genes in training cohort for progression-free survival

Variable	B	HR	95% CI	P value
KRAS	0.359	0.698	0.447 to 1.091	0.112
STK11	−0.398	1.489	0.919 to 2.411	0.115
TP53	0.320	0.726	0.471 to 1.119	0.149
EGFR	−0.459	1.583	0.906 to 2.766	0.120
PTPRD	0.413	0.661	0.371 to 1.179	0.142
KMT2C	0.643	0.526	0.270 to 1.025	0.043
SMAD4	−1.156	3.177	1.312 to 7.692	0.023
HGF	1.091	0.336	0.130 to 0.868	0.009

B, regression coefficient; CI, confidence interval; HR, hazard ratio.