154 Background: Our aim was to determine the association between smoking status and symptom expression, opioid use, alcoholism, and illicit drug use in advanced cancer patients. Methods: We retrospectively reviewed 560 consecutive charts from the outpatient Supportive Care Center and identified 300 advanced cancer patients who completed a comprehensive smoking questionnaire. Data on the Edmonton Symptom Assessment Scale (ESAS), morphine equivalent daily dose (MEDD), CAGE (Cut Down, Annoyed, Guilty, Eye Opener) questionnaire for alcoholism screening, and history of illicit drug use were collected. Results: Among 300 advanced cancer patients, 119 (40%) were never-smokers, 148 (49%) were former smokers, and 33 (11%) were current smokers. Compared with never-smokers, current smokers were more likely to be men (58% vs. 29%, P=0.004), report a higher pain expression (median 7.0 vs. 5.0 by the ESAS, P=0.007), be CAGE positive (≥2 yes response) (42% vs. 3%, P<0.001), and have a history of illicit drug use (33% vs. 3%, P<0.001). Compared with never-smokers, former smokers were more likely to be men (60% vs. 29%, P<0.001), have head and neck cancer or lung cancer (30% vs. 13%, P=0.001), be CAGE positive (21% vs. 3%, P<0.001), and have a history of illicit drug use (16% vs. 3%, P<0.001). Current smokers reported a higher pain expression than former smokers (median 7.0 vs. 6.0 by the ESAS, P=0.01), had higher CAGE positivity (42% vs. 21%, P=0.01) and more frequent illicit drug use (33% vs. 16%, P=0.03). The MEDD and the timing of palliative care referral were not significantly different between current or former smokers compared with never-smokers. However, a higher proportion of current smokers were receiving opioids with MEDD ≥30mg at the time of palliative care consultation compared with never-smokers (70% vs. 52%, P=0.08). Conclusions: Our study suggests that current tobacco use is associated with a higher pain expression. In addition, any history of tobacco use is associated with a history of illicit drug use and alcoholism. Advanced cancer patients who smoked cigarettes may be at an increased risk for chemical coping or stronger opioid utilization and further studies are needed.
Undocumented alcoholism and its correlation with tobacco and illegal drug use in advanced cancer patients
