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Table 5 Multivariate survival analysis for disease-free survival and overall survival

From: Programmed death-ligand 1 expression associated with molecular characteristics in surgically resected lung adenocarcinoma

Variables DFS OS
HR 95 % CI P HR 95 % CI P
Smoking status (smokers vs. non-smokers) 0.84 0.66–1.07 0.16 1.12 0.81–1.53 0.48
Stage (III vs. I + II) 1.71 1.32–2.21 0.00 1.16 0.84–1.58 0.00
PD-L1 expression (positive vs. negative) 1.17 0.91–1.51 0.22 1.79 1.30–2.46 0.37