%0 Journal Article %T Effect of nicotine dependence on quality of life and sleep quality in patients with lung cancer who continue to smoke after diagnosis %A Cai-Cun Zhou %A Fen Gu %A Guang-Hui Gao %A Jin-Fu Xu %A Xue-Fei Li %A Yi-Fan Wu %J SCIE-indexed Journal %D 2018 %R 10.21037/jtd.2018.05.12 %X According to the 2014 Surgeon General¡¯s Report, smoking by cancer patients and survivors causes adverse outcomes including increased overall mortality, increased cause-specific mortality, and increased risk for second primary cancers (1). But hundreds of millions of Chinese patients continue to smoke and rates of diagnosis of lung cancer are also gradually increasing. National registry data on lung cancer in China do not yet cover even a fifth of the national population (2). People who smoke are more likely to suffer from squamous cell lung carcinoma and small cell lung cancer (2). Taghizadeh et al. investigated 504 lung cancer patients and reported that 13 (2.6%) patients were never-smoker, 302 (59.9%) stopped smoking more than 3 months prior, while the remaining 189 (37.5%) were current-smoker (3). History of cigarette smoking has been associated with decreased overall survival among patients who received systemic treatment after diagnosis (4) %U http://jtd.amegroups.com/article/view/21166/html