The process of taking up smoking may be conceptualised as a progression through a number of stages in a continuum, during which external influences and individual characteristics interact. These stages may be broadly summarised as:1, 6
Precontemplation—the individual has no desire to start smoking in the near future. These adolescents do not view smoking positively, and are oblivious to, disregard, or resist pressure to smoke. Never-smokers do not proceed beyond this stage.6
Contemplation and preparation—development of positive beliefs and attitudes about cigarettes, shaped by influences such as family, peer group and the media.
Initiation—trying the first few cigarettes, usually with friends providing the greatest influence on behaviour. Factors such as boosting self-image and wishing for peer group approval are associated with this stage.
Experimentation—marked by a gradual increase in frequency of smoking and the contexts in which it occurs. Smoking is still viewed positively, even if its initial physiological effects feel unpleasant. Uncommitted smokers at this stage tend to give up, but others will persist, become adept at smoking, and develop a self-image as a smoker. Being part of a family where others smoke assists with ongoing access to cigarettes.
Regular smoking—the behaviour is no longer sporadic. Teenagers may smoke on the weekends, at parties, or on the way between home and school. Most smokers are not, at this stage, smoking daily, or consuming many cigarettes. Not all smokers who have reached this stage will proceed to the next stage.
Established/daily smoking—at this stage the smoker is addicted, and tobacco use is perceived to fulfil a range of psychological and physiological functions.
The process of smoking acquisition usually occurs during adolescence, for some rapidly escalating into dependence, while for others becoming established more gradually.7 In any individual, transit through the pathway outlined above may halt, reverse, or recommence, depending on a range of influences,8 including biological factors.6
Not all individuals who try smoking become committed smokers and identifying the causes of different behavioural trajectories is an important theme for further research.7