Objectives: This study was designed to investigate the smoking-related characteristics of lung cancer patients with alcohol use problem. Methods ： A total of 200 histologically confirmed lung cancer patients who had a current smoking status at the time of cancer diagnosis were recruited into this study. Demographic and smoking- related characteristics were assessed. Smoking-related characteristics, including smoking onset and duration, experiences of smoking cessation, Fagerstrom Test for Nicotine Dependence (FTND), and Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria for tobacco use disorder, were assessed. The Korean version of Alcohol Use Disorders Identification Test (AUDIT-K) was used to classify the alcohol use problem group and the non-alcohol use problem group. Results ： Lung cancer patients with alcohol use problem smoked more number of cigarettes per day. Smoking cessation attempts, duration of the longest smoking cessation, and experiences of smoking cessation treatment did not differ between the two groups. The alcohol use problem group showed a higher FTND score and prevalence of severe tobacco use disorder. Conclusion : The results showed that lung cancer patients with alcohol use problem had more severe nicotine dependence. This implies that the alcohol use problem comorbid with lung cancer would interfere with smoking cessation trials and aggravate lung cancer. Detection and intervention for alcohol use problem in lung cancer patients would be beneficial for smoking cessation and longitudinal course of lung cancer.
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