%0 Journal Article
%T Beverage Intake Assessment Questionnaire: Relative Validity and Repeatability in a Spanish Population with Metabolic Syndrome from the PREDIMED-PLUS Study
%A Adys Mart¨ªn ¨¢guila
%A Andy Mauromoustakos
%A C¨ªntia Ferreira-P¨ºgo
%A Jacqueline ¨¢lvarez P¨¦rez
%A Jordi Salas-Salvad¨®
%A Llu¨ªs Serra-Majem
%A Mariela Nissensohn
%A Nancy Babio
%A Stavros A. Kavouras
%J Archive of "Nutrients".
%D 2016
%R 10.3390/nu8080475
%X 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¨C75) with a BMI ¡Ý27 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¨CAltman 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
%K relative validity
%K repeatability
%K fluid questionnaire
%K beverage
%K PREDIMED-PLUS study
%K Spain
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997388/