Extract

P13

Effect of a tailored behaviour change programme on a composite lifestyle change score: a randomised controlled trial

N Jacobs1, E Clays2, D De Bacquer2, G De Backer2, P Dendale1, H thijs1, I De Bourdeaudhuij2, N Claes1

1  Hasselt University, Diepenbeek, Belgium, 2Ghent University, Ghent, Belgium

Topic: Behavioural medicine

Purpose: Cardiovascular disease can partially be prevented by not being overweight and by making prudent lifestyle choices with regard to diet, physical activity, and smoking. Hence, behaviour change programmes should simultaneously be targeted at multiple lifestyle factors. the purpose of the present study was to evaluate the medium-term effect of a tailored behaviour change programme on a composite lifestyle change score.

Methods: this was a randomised controlled trial with 314 participants allocated to a control and an intervention condition consisting of a tailored behaviour change programme (web-based and individual coaching). It was a homogenous study sample of highly educated adults with a Master s degree in Law. the dose of the coaching was chosen by the participants and registered throughout the trial. Outcome measures were weight, saturated fat intake, fruit- and vegetable intake, physical activity, smoking status and a composite lifestyle change score. T-tests, Mann Whitney U tests and a One-way analysis of variance were used to compare the study conditions and three intervention dose groups (no/low, medium, and high intervention dose). Statistical significance was set at a = .05.

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