Stages of change model for smoking prevention and cessation in schools

doi:10.1136/bmj.320.7232.447

BMJ 2000;320:447 ( 12 February )

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Stages of change model for smoking prevention and cessation in schools

Authors applied adult dose for smoking to adolescents when smoking behaviour is different in the two

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Authors applied adult dose for smoking to adolescents when smoking behaviour is different in the two

The first 150 words of the full text of this article appear below.

EDITOR $---$ My colleagues and I have read the article by Aveyard et al on smoking prevention and cessation in schools, which examinesthe use of computer delivered expert system interventions thatwe have developed.¹

For unreported reasons, Aveyard et al applied our adult dose for smoking to an adolescent population. In our standard adultprotocol we provide three expert system interventions over sixto 12 months. Aveyard et al provided three expert system interventionsto adolescents over a comparable period of time. Our behaviourchange protocol for adolescent populations calls for six to eightexpert system interventions over two academic years. One of thereasons our treatment with adolescents is at least twice as long,with more expert system interventions, is that smoking increasesover a two year period with adolescents, whereas it decreaseswith adults. Why would Aveyard et al expect an adult dose forsmoking to be effective . . . [Full text of this article]

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