Home-based smoking prevention program Smoke-free Kids on smoking-related cognitions: Secondary outcomes from a cluster randomized controlled trial
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Number of pages
SourcePsychology & Health, 31, 2, (2016), pp. 131-146
Article / Letter to editor
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SW OZ BSI OGG
Psychology & Health
Objectives: The home-based smoking prevention programme Smoke-free Kids' did not have an effect on primary outcome smoking initiation. A possible explanation may be that the programme has a delayed effect. The aim of this study was to evaluate the effects on the development of important precursors of smoking: smoking-related cognitions. Methods: We used a cluster randomised controlled trial in 9- to 11-year-old children and their mothers. The intervention condition received five activity modules, including a communication sheet for mothers, by mail at four-week intervals. The control condition received a fact-based programme. Secondary outcomes were attitudes, self-efficacy and social norms. Latent growth curves analyses were used to calculate the development of cognitions over time. Subsequently, path modelling was used to estimate the programme effects on the initial level and growth of each cognition. Results : Analyses were performed on 1398 never-smoking children at baseline. Results showed that for children in the intervention condition, perceived maternal norms increased less strongly as compared to the control condition (=-.10, p=.03). No effects were found for the other cognitions. Conclusion: Based on the limited effects, we do not assume that the programme will have a delayed effect on smoking behaviour later during adolescence.
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