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Characteristics of European adults who dropped out from the Food4Me Internet-based personalised nutrition intervention

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Livingstone, K., Celis-Morales, C., Macready, A. L. ORCID: https://orcid.org/0000-0003-0368-9336, Fallaize, R., Forster, H., Woolhead, C., O'Donovan, C. B., Marsaux, C. F. M., Navas-Carretero, S., San-Cristobel, R., Kolossa, S., Tsirigoti, L., Lambrinou, C. P., Moschonis, G., Surwiłło, A., Drevon, C. A., Manios, Y., Traczyk, I., Gibney, E. R., Brennan, L. et al (2017) Characteristics of European adults who dropped out from the Food4Me Internet-based personalised nutrition intervention. Public Health Nutrition, 20 (1). pp. 53-63. ISSN 1368-9800

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To link to this item DOI: 10.1017/S1368980016002020

Abstract/Summary

Objective To characterise participants who dropped out of the Food4Me Proof-of-Principle study. Design The Food4Me study was an Internet-based, 6-month, four-arm, randomised controlled trial. The control group received generalised dietary and lifestyle recommendations, whereas participants randomised to three different levels of personalised nutrition (PN) received advice based on dietary, phenotypic and/or genotypic data, respectively (with either more or less frequent feedback). Setting Seven recruitment sites: UK, Ireland, The Netherlands, Germany, Spain, Poland and Greece. Subjects Adults aged 18–79 years (n 1607). Results A total of 337 (21 %) participants dropped out during the intervention. At baseline, dropouts had higher BMI (0·5 kg/m2; P<0·001). Attrition did not differ significantly between individuals receiving generalised dietary guidelines (Control) and those randomised to PN. Participants were more likely to drop out (OR; 95 % CI) if they received more frequent feedback (1·81; 1·36, 2·41; P<0·001), were female (1·38; 1·06, 1·78; P=0·015), less than 45 years old (2·57; 1·95, 3·39; P<0·001) and obese (2·25; 1·47, 3·43; P<0·001). Attrition was more likely in participants who reported an interest in losing weight (1·53; 1·19, 1·97; P<0·001) or skipping meals (1·75; 1·16, 2·65; P=0·008), and less likely if participants claimed to eat healthily frequently (0·62; 0·45, 0·86; P=0·003). Conclusions Attrition did not differ between participants receiving generalised or PN advice but more frequent feedback was related to attrition for those randomised to PN interventions. Better strategies are required to minimise dropouts among younger and obese individuals participating in PN interventions and more frequent feedback may be an unnecessary burden.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Agriculture, Policy and Development > Department of Agri-Food Economics & Marketing
Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Human Nutrition Research Group
Life Sciences > School of Psychology and Clinical Language Sciences > Nutrition and Health
ID Code:66409
Uncontrolled Keywords:Dropout; Personalised nutrition; Internet-based; European adults; Food4Me
Publisher:Cambridge University Press
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