Stages of change model for smoking prevention and cessation in schools

doi:10.1136/bmj.320.7232.447

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Please see: Stages of change model for smoking prevention and cessation in schools

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

James O Prochaska, director (jop@uri.edu)

Cancer Prevention Research Center, University of Rhode Island, Kingston, RI 02881, USA
Department of Public Health and Epidemiology, University of Birmingham, Birmingham B15 2TT

EDITOR—My colleagues and I have read the article by Aveyard et al on smoking prevention and cessation in schools, which examines the use of computer delivered expert system interventions that we have developed.1

For unreported reasons, Aveyard et al applied our adult dose for smoking to an adolescent population. In our standard adult protocol we provide three expert system interventions over six to 12 months. Aveyard et al provided three expert system interventions to adolescents over a comparable period of time. Our behaviour change protocol for adolescent populations calls for six to eight expert system interventions over two academic years. One of the reasons our treatment with adolescents is at least twice as long, with more expert …