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Int. J. Environ. Res. Public Health 2017, 14(10), 1275; doi:10.3390/ijerph14101275

Effectiveness of a Video-Versus Text-Based Computer-Tailored Intervention for Obesity Prevention after One Year: A Randomized Controlled Trial

1
Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Maastricht University, 6211 LK Maastricht, The Netherlands
2
Department of Health Promotion, Care and Public Health Research Institute (CAPHRI), Maastricht University, 6211 LK Maastricht, The Netherlands
3
Department of Methodology and Statistics, School of Social and Behavioral Sciences (TSB), Tilburg University, 5037 AB Tilburg, The Netherlands
4
Department of Psychology, Open University of the Netherlands, 6419 AT Heerlen, The Netherlands
*
Author to whom correspondence should be addressed.
Received: 24 August 2017 / Revised: 18 September 2017 / Accepted: 18 October 2017 / Published: 23 October 2017
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Abstract

Computer-tailored programs may help to prevent overweight and obesity, which are worldwide public health problems. This study investigated (1) the 12-month effectiveness of a video- and text-based computer-tailored intervention on energy intake, physical activity, and body mass index (BMI), and (2) the role of educational level in intervention effects. A randomized controlled trial in The Netherlands was conducted, in which adults were allocated to a video-based condition, text-based condition, or control condition, with baseline, 6 months, and 12 months follow-up. Outcome variables were self-reported BMI, physical activity, and energy intake. Mixed-effects modelling was used to investigate intervention effects and potential interaction effects. Compared to the control group, the video intervention group was effective regarding energy intake after 6 months (least squares means (LSM) difference = −205.40, p = 0.00) and 12 months (LSM difference = −128.14, p = 0.03). Only video intervention resulted in lower average daily energy intake after one year (d = 0.12). Educational role and BMI did not seem to interact with this effect. No intervention effects on BMI and physical activity were found. The video computer-tailored intervention was effective on energy intake after one year. This effect was not dependent on educational levels or BMI categories, suggesting that video tailoring can be effective for a broad range of risk groups and may be preferred over text tailoring. View Full-Text
Keywords: randomized controlled trial; web-based; computer-tailoring; obesity; educational level; energy intake randomized controlled trial; web-based; computer-tailoring; obesity; educational level; energy intake
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MDPI and ACS Style

Cheung, K.L.; Schwabe, I.; Walthouwer, M.J.L.; Oenema, A.; Lechner, L.; de Vries, H. Effectiveness of a Video-Versus Text-Based Computer-Tailored Intervention for Obesity Prevention after One Year: A Randomized Controlled Trial. Int. J. Environ. Res. Public Health 2017, 14, 1275.

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