Comment on: “Quitting Smoking at or Around Diagnosis Improves the Overall Survival of Lung Cancer Patients: A Systematic Review and Meta-Analysis”

Lung cancer is currently the second most common cancer in the United States and the leading cause of cancer mortality worldwide. A large number of previous epidemiologic studies have confirmed that smoking is a risk factor for various malignancies, including lung cancer, increasing the risk of tumor-related mortality and all-cause mortality.1 On the basis of the theory of planned behavior, timely feedback of tumor screening and abnormal screening results can effectively improve the smoking cessation rate.