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A cluster randomised controlled trial of smoking cessation in pregnant women comparing interventions based on the transtheoretical (stages of change) model to standard care
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  • Published on:
    Response to Impact vs. Efficacy for Pregnant Smokers
    • Paul Aveyard, Senior Lecturer
    • Other Contributors:
      • Terry Lawrence, KK Cheng

    Prochaska and Velicer have commented on this trial(1), and, having been alerted to this comment elsewhere, we feel we need to respond belatedly. They suggest the study had important flaws but do not name them. We drew attention to those flaws in the conduct of the study in the report. The major flaw was that midwives in the control arm were less enthused about the intervention and complied with the protocol less well,...

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    Conflict of Interest:
    None declared.
  • Published on:
    Impact vs. Efficacy for Pregnant Smokers

    Lawrence et al. (2003) reported the results of their cluster RCT on smoking cessation in pregnant women comparing (1) standard care; (2) Transtheoretical Model (TTM) based manuals; and (3) TTM computer based tailored communications.1 In spite of serious flaws in this study, there were very important results that the authors overlooked. They do not seem to appreciate that this was a population-based trial where the goal...

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    Conflict of Interest:
    None declared.