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http://hdl.handle.net/10553/18509
Title: | Beverage intake assessment questionnaire: relative validity and repeatability in a spanish population with metabolic syndrome from the PREDIMED-PLUS study | Authors: | Ferreira-Pego, Cintia Nissensohn, Mariela Kavouras, Stavros A. Babio, Nancy Serra-Majem, Lluis Martín Águila, Adys Mauromoustakos, Andy Salas-Salvadó, Jordi Álvarez Pérez, Jacqueline |
UNESCO Clasification: | 3206 Ciencias de la nutrición | Keywords: | Relative validity Repeatability Fluid questionnaire Beverages PREDIMED-PLUSstudy, et al |
Issue Date: | 2016 | Journal: | Nutrients | Abstract: | 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. | URI: | http://hdl.handle.net/10553/18509 | ISSN: | 2072-6643 | DOI: | 10.3390/nu8080475 | Source: | Nutrients [ISSN 2072-6643], v.8 (8), p. 475 | Rights: | by-nc-nd |
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