Design and evaluation protocol of "FATaintPHAT", a computer-tailored intervention to prevent excessive weight gain in adolescents

Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands. .
BMC Public Health (Impact Factor: 2.26). 02/2007; 7(1):324. DOI: 10.1186/1471-2458-7-324
Source: PubMed


Computer tailoring may be a promising technique for prevention of overweight in adolescents. However, very few well-developed, evidence-based computer-tailored interventions are available for this target group. We developed and evaluated a computer-tailored intervention for adolescents targeting energy balance-related behaviours: i.e. consumption of snacks, sugar-sweetened beverages, fruit, vegetables, and fibre, physical activity, and sedentary behaviours. This paper describes the planned development of a school-based computer-tailored intervention aimed at improving energy balance-related behaviours in order to prevent excessive weight gain in adolescents, and the protocol for evaluating this intervention.
Intervention development: Informed by the Precaution Adoption Process Model and the Theory of Planned Behaviour, the computer-tailored intervention provided feedback on personal behaviour and suggestions on how to modify it. The intervention (VETisnietVET translated as 'FATaintPHAT') has been developed for use in the first year of secondary school during eight lessons. Evaluation design: The intervention will be evaluated in a cluster-randomised trial including 20 schools with a 4-months and a 2-years follow-up. Outcome measures are BMI, waist circumference, energy balance-related behaviours, and potential determinants of these behaviours. Process measures are appreciation of and satisfaction with the program, exposure to the program's content, and implementation facilitators and barriers measured among students and teachers.
This project resulted in a theory and evidence-based intervention that can be implemented in a school setting. A large-scale randomised controlled trial with a short and long-term follow-up will provide sound statements about the effectiveness of this computer-tailored intervention in adolescents.

Download full-text


Available from: Nicole Ezendam
  • Source
    • ". Ezendam et al., 2007, et al., 2005 Haerens, De Bourdeaudhuij et al., 2007 Haerens, De- forche et al., 2007 Mauriello et al., 2010 "
    [Show abstract] [Hide abstract]
    ABSTRACT: In response to the childhood obesity epidemic, numerous studies on school-based Internet obesity prevention interventions have been conducted. The purpose of this systematic review is to describe, synthesize, and evaluate the research on school-based Internet obesity prevention programs for adolescents. Medline, CINAHL, and PsycInfo were searched from January 1995 to August 2012 to locate relevant studies. Ninety-one reports were initially identified, with 12 meeting the inclusion criteria. Studies had variable control groups, program content, and sample characteristics. Though few authors reported on implementation processes or body mass index (BMI) outcomes, the majority of studies were effective in improving health behaviors in the short term. Most studies were judged to have a high or unclear risk of bias in at least two domains, thus the quality of evidence for this body of literature is moderate. Further research is needed to examine programs of longer duration, optimal dose and timing of programs, cost-effectiveness, and mediators and moderators of intervention outcomes.
    Full-text · Article · Mar 2013 · The Yale journal of biology and medicine
  • Source
    • "A post-questionnaire was developed to evaluate the content and lay-out of the tailored website, based on concepts commonly accepted in literature on process evaluation of computer-tailored interventions [25,26]. A first set of questions (five-point Likert scale: 1 = ‘I don’t agree at all’ to 5 = ‘I totally agree’) assessed to what extent the website was user-friendly, well built, interesting, informative, understandable, new, incomplete, irrelevant, unreliable, too extensive and confusing. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Background On-line provision of information during the transition phase after treatment carries great promise in meeting shortcomings in post-treatment care for breast cancer survivors and their partners. The objectives of this study are to describe the development and process evaluation of a tailored informative website and to assess which characteristics of survivors and partners, participating in the feasibility study, are related to visiting the website. Methods The development process included quantitative and qualitative assessments of survivors’ and partners’ care needs and preferences. Participants’ use and evaluation of the website were explored by conducting baseline and post-measurements. During the intervening 10–12 weeks 57 survivors and 28 partners were granted access to the website. Results Fifty-seven percent (n=21) of survivors who took part in the post-measurement indicated that they had visited the website. Compared to non-visitors (n=16), they were more likely to have a partner and a higher income, reported higher levels of self-esteem and had completed treatment for a longer period of time. Partners who consulted the on-line information (42%, n=8) were younger and reported lower levels of social support compared to partners who did not visit the website (n=11). Visitors generally evaluated the content and lay-out positively, yet some believed the information was incomplete and impersonal. Conclusions The website reached only about half of survivors and partners, yet was mostly well-received. Besides other ways of providing information and support, a website containing clear-cut and tailored information could be a useful tool in post-treatment care provision.
    Full-text · Article · Oct 2012 · BMC Research Notes
  • Source
    • "The behavioural outcome measures were assessed with a computer questionnaire (Ezendam et al., 2007) at baseline and 4 months follow-up. Questionnaires were completed under supervision of a researcher during a class hour. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Unlabelled: Process evaluations can help us to better interpret intervention effects and provide guidance in improving interventions. This study describes the use and appreciation of FATaintPHAT, a computer-tailored intervention to prevent excessive weight gain in adolescents and link these data to the intervention effects. Use and appreciation were assessed among students (12-13 years old) from the intervention group of the FATaintPHAT evaluation study, using computer log (n = 458) and questionnaire data (n = 233, 48% response). Differences in use and appreciation between socio-demographic groups (gender, education, ethnicity, weight category), and associations with behavioural outcomes were analysed using descriptive and regression analyses. The results showed that a majority of the students (81%) was exposed to all intervention modules and 73% reported to have put the advice into practise. Half and one-third of the students appreciated the tailored advice positively and neutrally, respectively. Students attending vocational training appreciated FATaintPHAT better than students attending university preparation education. No associations were found between behavioural outcomes with appreciation and use. In conclusion, the school-based FATainPHAT intervention was used and appreciated well among adolescents. The fact that the intervention was appreciated better among the lower compared with higher educated students indicates that the technique of computer-tailoring is also suitable for lower educated students. Trial registration: Netherlands Trial Registry, ISRCTN 15743786.
    Full-text · Article · Jun 2012 · Health Promotion International
Show more