Clinical and molecular characteristics associated with high PD-L1 expression in EGFR-mutated lung adenocarcinoma.

The occurrence of a common EGFR mutation showed a trend towards higher overall survival, although the association did not reach statistical significance ( Table 3 ).

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The proportion of smokers was higher in the PD-L1 ≥ 50% group, although this difference did not reach statistical significance.

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