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.
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.
Entities:
Keywords:
Dropout; European adults; Food4Me; Internet-based; Personalised nutrition
Authors: Katherine M Livingstone; Barbara Brayner; Carlos Celis-Morales; George Moschonis; Yannis Manios; Iwona Traczyk; Christian A Drevon; Hannelore Daniel; Wim H M Saris; Julie A Lovegrove; Mike Gibney; Eileen R Gibney; Lorraine Brennan; J Alfredo Martinez; John C Mathers Journal: Eur J Nutr Date: 2022-03-21 Impact factor: 4.865
Authors: Katherine M Livingstone; Carlos Celis-Morales; Santiago Navas-Carretero; Rodrigo San-Cristobal; Hannah Forster; Clara Woolhead; Clare B O'Donovan; George Moschonis; Yannis Manios; Iwona Traczyk; Thomas E Gundersen; Christian A Drevon; Cyril F M Marsaux; Rosalind Fallaize; Anna L Macready; Hannelore Daniel; Wim H M Saris; Julie A Lovegrove; Mike Gibney; Eileen R Gibney; Marianne Walsh; Lorraine Brennan; J Alfredo Martinez; John C Mathers Journal: Int J Behav Nutr Phys Act Date: 2021-06-07 Impact factor: 6.457
Authors: Rodrigo San-Cristobal; Santiago Navas-Carretero; Katherine M Livingstone; Carlos Celis-Morales; Anna L Macready; Rosalind Fallaize; Clare B O'Donovan; Christina P Lambrinou; George Moschonis; Cyril F M Marsaux; Yannis Manios; Miroslaw Jarosz; Hannelore Daniel; Eileen R Gibney; Lorraine Brennan; Christian A Drevon; Thomas E Gundersen; Mike Gibney; Wim H M Saris; Julie A Lovegrove; Keith Grimaldi; Laurence D Parnell; Jildau Bouwman; Ben Van Ommen; John C Mathers; J Alfredo Martinez Journal: Nutrients Date: 2017-10-11 Impact factor: 5.717