EGFR and neoplasm: According to the results of logistic regression analysis, EGFR mutations were positively associated with women, non-smokers, ADC, and IA and negatively correlated with solid nodule, MIA, and solid-predominant adenocarcinoma after adjusting for gender, age, smoking history, drinking status, serum tumor markers, pulmonary nodule types, tumor long diameter, and TNM stage.