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Beyond intention: do specific plans increase health behaviours in patients in primary care? A study of fruit and vegetable consumption

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  • Jackson, Cath
  • Lawton, Rebecca
  • Knapp, Peter
  • Raynor, David K.
  • Conner, Mark
  • Lowe, Catherine
  • José Closs, S.

Abstract

Increasing evidence suggests that implementation intentions are effective in moving people towards achieving health behaviour goals. However, the type of health behaviours for which they work best is unclear. Furthermore, implementation intentions appear to be less effective when studied in clinical rather than student populations. This prospective study tested implementation intentions with a complex, repeated health behaviour in a patient sample. A total of 120 cardiac patients in the UK were asked to increase their daily fruit and vegetable consumption by two portions and to maintain this over 3 months. Participants were randomly assigned to three groups (control, Theory of Planned Behaviour (TPB) questionnaire, TPB questionnaire+implementation intention) and telephoned at 7, 28 and 90 days follow-up to record daily consumption (24-h recall measure); 94 participants completed the study. Daily fruit and vegetable consumption increased from 2.88 portions (SD=1.67) at recruitment to 4.28 portions (SD=2.25) at 90 days. A 4x3 (time by group) mixed design ANCOVA was computed with daily fruit and vegetable consumption at recruitment entered as a covariate. This revealed a significant time effect (F (3, 270)=29.79, p

Suggested Citation

  • Jackson, Cath & Lawton, Rebecca & Knapp, Peter & Raynor, David K. & Conner, Mark & Lowe, Catherine & José Closs, S., 2005. "Beyond intention: do specific plans increase health behaviours in patients in primary care? A study of fruit and vegetable consumption," Social Science & Medicine, Elsevier, vol. 60(10), pages 2383-2391, May.
    • Handle: RePEc:eee:socmed:v:60:y:2005:i:10:p:2383-2391
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    Cited by:

    1. Keller, Jan & Fleig, Lena & Hohl, Diana Hilda & Wiedemann, Amelie U. & Burkert, Silke & Luszczynska, Aleksandra & Knoll, Nina, 2017. "Which characteristics of planning matter? Individual and dyadic physical activity plans and their effects on plan enactment," Social Science & Medicine, Elsevier, vol. 189(C), pages 53-62.
    2. Luszczynska, Aleksandra, 2006. "An implementation intentions intervention, the use of a planning strategy, and physical activity after myocardial infarction," Social Science & Medicine, Elsevier, vol. 62(4), pages 900-908, February.
    3. Lange, Daniela & Barz, Milena & Baldensperger, Linda & Lippke, Sonia & Knoll, Nina & Schwarzer, Ralf, 2018. "Sex differential mediation effects of planning within the health behavior change process," Social Science & Medicine, Elsevier, vol. 211(C), pages 137-146.

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