smoking 30 or more cigarettes per day were nicotine dependent using the FTND criteria of a score of 4 or more. Similar findings were seen in former smokers. This comparison of number of cigarettes per day and FTND score in the COGEND population and a previous analysis of cigarettes per day with DSM-IV defined nicotine dependence (6) indicate that the majority of our heavy and light smokers would be classified as nicotine dependent and non-dependent, respectively.
