Correlation between mRNA expression levels of recurrence-related genes and clinicopathological factors.

aAverage of log2-transformed mRNA expression levels/GAPDH ± standard deviation. bAdjusted P-values using adjusted Bonferroni correction. cAnalysis of variance between groups. dPredominant histological subtypes of LADCs were diagnosed according to the classification devised by the International Association for the Study of Lung Cancer, the American Thoracic Society and the European Respiratory Society [29]. eWelch’s T-test. fCoal dust is accumulated in active fibroblast proliferation foci, which is associated with poorer prognosis of lung adenocarcinoma patients and reflects an active cancer-stromal interaction [30]. P values of