p16 Methylation for Smoking Cessation

"* patients shown a presentation on p16 methylation and the development of lung cancer, asked to complete a questionnaire on items from presentation, desire to have p16 methylation test, views regarding their health and lung cancer, current smoking habits, and demographic details~* patients given a sputum cup which they are asked to spit into on three consecutive mornings and then return to the lab for processing~* a results letter is mailed to them and then followed up with a phone call at one month to discuss the results as well as any changes in their attitudes or smoking habits~* patients are called again at three months and asked about any changes in their attitudes or smoking habits."