Assessment of Tobacco Smoking and Alcohol Drinking and Treatment Outcomes Among Patients With Lung or Head and Neck Cancer

A trained interviewer (Clinical Research Associate : CRA) will administer a questionnaire soon after the diagnosis on the phone (within 15 calendar days after diagnosis). The participants are followed up during the first year following the diagnosis through 3 follow-up assessments (at 3, 6, and 12 months after the baseline assessment) and hospital record reviews. At each follow-up, a brief questionnaire will be administered by an interviewer (CRA) via telephone.