Smoking Prevention in Young People: A Cluster Randomised Controlled Trial of Implementation Intentions

Principal Investigator: Prof Sarah Grogan

Project Fact File

Start DateJuly 2012
End DateMarch 2017
Funded by

Medical Research Council

Project TeamProf Sarah Grogan
External Providers and CollaboratorsProf Rebecca Lawton, University of Leeds
Prof Christopher J. Armitage, University of Manchester
Prof Robert West, University of Leeds
Dr Kamran Siddiqi, University of York
Prof Carole Torgerson, Durham University
Ruth Simms-Ellis, University of Leeds
Keira Flett, Staffordshire University

Principal Investigator

Meet Prof Sarah Grogan

Prof Sarah Grogan


Phone +44 (0)161 247 2504

Project Details


This study is a randomised controlled trial investigating impact of implementation intentions on smoking initiation in 11-16 year olds. This research tests an intervention to reduce smoking initiation in adolescents initially aged 11-12 years over a 4 year time period. The intervention is being conducted in 45 schools in Staffordshire and Leeds in classroom time on nine occasions. The outcome measure is smoking behaviour assessed by self-report and more objective measures (smokerlyser) at ages 11-12, 12-13, 13-14, 14-15, and 15-16 years.

Aims and Objectives

To investigate the following research questions:

  1. Can repeated implementation intentions related to refusing offers of cigarettes reduce smoking initiation rates in 11-16 year olds relative to a control group of adolescents?
  2. What is the cost effectiveness of such an intervention?


Conner, M., Grogan, S., Lawton,R., Armitage, C., West, R., Siddiqi, K., Gannon, B., Torgerson, C., Flett,K. & Simms-Ellis, R. (2013) "Study protocol: A cluster randomised controlled trial of implementation intentions to reduce smoking initiation in adolescents", BMC Public Health, 13, 54
DOI: 10.1186/1471-2458-13-54