Predictors of short- and long-term adherence with a Mediterranean-type diet intervention: the PREDIMED randomized trial.

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RECERCAT Home > Universitat de Barcelona > IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer > Articles publicats en revistes (IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/109282

dc.contributor.author	Downer, Mary Kathryn
dc.contributor.author	Gea, Alfredo
dc.contributor.author	Stampfer, Meir J.
dc.contributor.author	Sánchez Tainta, Ana
dc.contributor.author	Corella Piquer, Dolores
dc.contributor.author	Salas Salvadó, Jordi
dc.contributor.author	Ros Rahola, Emilio
dc.contributor.author	Estruch Riba, Ramon
dc.contributor.author	Fitó Colomer, Montserrat
dc.contributor.author	Gómez Gracia, Enrique
dc.contributor.author	Arós, Fernando
dc.contributor.author	Fiol Sala, Miguel
dc.contributor.author	García de la Corte, Francisco José
dc.contributor.author	Serra Majem, Lluís
dc.contributor.author	Pintó Sala, Xavier
dc.contributor.author	Basora, Josep
dc.contributor.author	Sorlí, José V.
dc.contributor.author	Vinyoles, Ernest
dc.contributor.author	Zazpe, Itziar
dc.contributor.author	Martínez-González, Miguel Ángel, 1957-
dc.date	2017-04-03T15:14:45Z
dc.date	2017-04-03T15:14:45Z
dc.date	2016-06-14
dc.date	2017-04-03T15:14:45Z
dc.identifier	1479-5868
dc.identifier	669117
dc.identifier	27297426
dc.identifier.uri	http://hdl.handle.net/2445/109282
dc.description	Background: Dietary intervention success requires strong participant adherence, but very few studies have examined factors related to both short-term and long-term adherence. A better understanding of predictors of adherence is necessary to improve the design and execution of dietary intervention trials. This study was designed to identify participant characteristics at baseline and study features that predict short-term and long-term adherence with interventions promoting the Mediterranean-type diet (MedDiet) in the PREvención con DIeta MEDiterránea (PREDIMED) randomized trial. Methods: Analyses included men and women living in Spain aged 55-80 at high risk for cardiovascular disease. Participants were randomized to the MedDiet supplemented with either complementary extra-virgin olive oil (EVOO) or tree nuts. The control group and participants with insufficient information on adherence were excluded. PREDIMED began in 2003 and ended in 2010. Investigators assessed covariates at baseline and dietary information was updated yearly throughout follow-up. Adherence was measured with a validated 14-point Mediterranean-type diet adherence score. Logistic regression was used to examine associations between baseline characteristics and adherence at one and four years of follow-up. Results: Participants were randomized to the MedDiet supplemented with EVOO (n = 2,543; 1,962 after exclusions) or tree nuts (n = 2,454; 2,236 after exclusions). A higher number of cardiovascular risk factors, larger waist circumference, lower physical activity levels, lower total energy intake, poorer baseline adherence to the 14-point adherence score, and allocation to MedDiet + EVOO each independently predicted poorer adherence. Participants from PREDIMED recruiting centers with a higher total workload (measured as total number of persons-years of follow-up) achieved better adherence. No adverse events or side effects were reported. Conclusions: To maximize dietary adherence in dietary interventions, additional efforts to promote adherence should be used for participants with lower baseline adherence to the intended diet and poorer health status. The design of multicenter nutrition trials should prioritize few large centers with more participants in each, rather than many small centers.
dc.format	16 p.
dc.format	application/pdf
dc.language	eng
dc.publisher	BioMed Central
dc.relation	Reproducció del document publicat a: https://doi.org/10.1186/s12966-016-0394-6
dc.relation	International Journal of Behavioral Nutrition and Physical Activity, 2016, vol. 13, p. 67
dc.relation	https://doi.org/10.1186/s12966-016-0394-6
dc.rights	cc-by (c) International Society for Behavioral Nutrition and Physical Activity , 2016
dc.rights	http://creativecommons.org/licenses/by/3.0/es
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Cuina mediterrània
dc.subject	Hàbits alimentaris
dc.subject	Promoció de la salut
dc.subject	Dieta
dc.subject	Mediterranean cooking
dc.subject	Food habits
dc.subject	Health promotion
dc.subject	Diet
dc.title	Predictors of short- and long-term adherence with a Mediterranean-type diet intervention: the PREDIMED randomized trial.
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion

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