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. 2021 Apr 15;7(6):937–939. doi: 10.1001/jamaoncol.2021.0546

Table. Hazard Ratios for Death in PD-L1–High NSCLC by KRAS Status and Treatment Regimen.

Values HR (95% CI)
Unadjusted Adjusteda
Prognostic value of KRAS status
ICI monotherapy
KRAS variant 0.79 (0.64-0.98) 0.77 (0.61-0.98)
KRAS wild type 1 [Reference] 1 [Reference]
Chemoimmunotherapy
KRAS variant 0.98 (0.73-1.33) 0.99 (0.70-1.40)
KRAS wild type 1 [Reference] 1 [Reference]
Predictive value of KRAS status
KRAS variant
ICI monotherapy 1.04 (0.80-1.35) 1.03 (0.75-1.40)
Chemoimmunotherapy 1 [Reference] 1 [Reference]
KRAS wild type
ICI monotherapy 1.27 (0.99-1.64) 1.19 (0.89-1.58)
Chemoimmunotherapy 1 [Reference] 1 [Reference]

Abbreviations: ECOG, Eastern Cooperative Oncology Group; HR, hazard ratio; ICI, immune checkpoint inhibition; NSCLC, non–small-cell lung cancer; PD-L1, programmed cell death ligand 1.

a

Multivariable Cox model adjusted for age, sex, race/ethnicity, ECOG performance status, disease stage, and smoking history. Missing values for ECOG performance status were imputed by multiple chained imputation.