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Nutrients 2016, 8(8), 475; doi:10.3390/nu8080475

Beverage Intake Assessment Questionnaire: Relative Validity and Repeatability in a Spanish Population with Metabolic Syndrome from the PREDIMED-PLUS Study

Human Nutrition Unit, Biochemistry Biotechnology Department, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, IISPV (Institut d’Investigació Sanitària Pere Virgili); Hospital Universitari de Sant Joan de Reus, C/Sant Llorenç, 21, Reus 43201, Spain
CIBEROBN (Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición), Instituto de Salud Carlos III, Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0, Madrid 28029, Spain
Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe “Físico” (s/n), Las Palmas de Gran Canaria 35016, Spain
Hydration Science Lab, 155 Stadium dr-HPER 308Q, University of Arkansas, Fayetteville, AR 72701, USA
Clinical Analysis Unit, University Hospital of Gran Canaria Dr. Negrin, Barranco de la Ballena, s/n, Las Palmas de Gran Canaria 35010, Spain
Agricultural Statistics Lab, 101 Agricultural Annex Building, University of Arkansas, Fayetteville, AR 72701, USA
Author to whom correspondence should be addressed.
Received: 9 June 2016 / Revised: 22 July 2016 / Accepted: 27 July 2016 / Published: 30 July 2016
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We assess the repeatability and relative validity of a Spanish beverage intake questionnaire for assessing water intake from beverages. The present analysis was performed within the framework of the PREDIMED-PLUS trial. The study participants were adults (aged 55–75) with a BMI ≥27 and <40 kg/m2, and at least three components of Metabolic Syndrome (MetS). A trained dietitian completed the questionnaire. Participants provided 24-h urine samples, and the volume and urine osmolality were recorded. The repeatability of the baseline measurement at 6 and 1 year was examined by paired Student’s t-test comparisons. A total of 160 participants were included in the analysis. The Bland–Altman analysis showed relatively good agreement between total daily fluid intake assessed using the fluid-specific questionnaire, and urine osmolality and 24-h volume with parameter estimates of −0.65 and 0.22, respectively (R2 = 0.20; p < 0.001). In the repeatability test, no significant differences were found between neither type of beverage nor total daily fluid intake at 6 months and 1-year assessment, compared to baseline. The proposed fluid-specific assessment questionnaire designed to assess the consumption of water and other beverages in Spanish adult individuals was found to be relatively valid with good repeatability. View Full-Text
Keywords: relative validity; repeatability; fluid questionnaire; beverage; PREDIMED-PLUS study; Spain relative validity; repeatability; fluid questionnaire; beverage; PREDIMED-PLUS study; Spain

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ferreira-Pêgo, C.; Nissensohn, M.; Kavouras, S.A.; Babio, N.; Serra-Majem, L.; Martín Águila, A.; Mauromoustakos, A.; Álvarez Pérez, J.; Salas-Salvadó, J. Beverage Intake Assessment Questionnaire: Relative Validity and Repeatability in a Spanish Population with Metabolic Syndrome from the PREDIMED-PLUS Study. Nutrients 2016, 8, 475.

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