The fact that gender remained in the model for the association of CPD with NMR was not surprising since males smoked more CPD in our sample. However, there were no gender differences in NMR. Duration of smoking remained in the models for both associations of NMR with CPD and mFTQ. This makes conceptual sense since, in general, the longer an adolescent has been smoking the greater the likelihood of increasing the quantity of cigarettes smoked and the level of addiction reported.
