{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T04:23:45Z","timestamp":1768278225997,"version":"3.49.0"},"reference-count":51,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2015,3,2]],"date-time":"2015-03-02T00:00:00Z","timestamp":1425254400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Hydration Institute Student Grant"},{"name":"Young Research Group from the University of Porto \u2013 Investiga\u00e7\u00e3o Jovem da Universidade do Porto"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Dehydration is common among elderly people. The aim of this study was to perform validation analysis of a geriatric dehydration-screening tool (DST) in the assessment of hydration status in elderly people. This tool was based on the DST proposed by Vivanti et al., which is composed by 11 items (four physical signs of dehydration and seven questions about thirst sensation, pain and mobility), with four questions extra about drinking habits. The resulting questionnaire was evaluated in a convenience sample comprising institutionalized (n = 29) and community-dwelling (n = 74) elderly people. Urinary parameters were assessed (24-h urine osmolality and volume) and free water reserve (FWR) was calculated. Exploratory factor analysis was used to evaluate the scale\u2019s dimensionality and Cronbach\u2019s alpha was used to measure the reliability of each subscale. Construct\u2019s validity was tested using linear regression to estimate the association between scores in each dimension and urinary parameters. Two factors emerged from factor analysis, which were named \u201cHydration Score\u201d and \u201cPain Score\u201d, and both subscales showed acceptable reliabilities. The \u201cHydration Score\u201d was negatively associated with 24-h urine osmolality in community-dwelling; and the \u201cPain Score\u201d was negatively associated with 24-h urine osmolality, and positively associated with 24-h urine volume and FWR in institutionalized elderly people.<\/jats:p>","DOI":"10.3390\/ijerph120302700","type":"journal-article","created":{"date-parts":[[2015,3,2]],"date-time":"2015-03-02T10:45:12Z","timestamp":1425293112000},"page":"2700-2717","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Validation Analysis of a Geriatric Dehydration Screening Tool in Community-Dwelling and Institutionalized Elderly People"],"prefix":"10.3390","volume":"12","author":[{"given":"Susana","family":"Rodrigues","sequence":"first","affiliation":[{"name":"Faculty of Medicine, University of Lisbon, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal"}]},{"given":"Joana","family":"Silva","sequence":"additional","affiliation":[{"name":"Faculty of Nutrition and Food Sciences, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal"},{"name":"Faculty of Sciences, University of Porto, Rua do Campo Alegre, Porto 4169-007, Portugal"}]},{"given":"Milton","family":"Severo","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Porto, Al. Prof. Hern\u00e2ni Monteiro, Porto 4200-319, Portugal"},{"name":"Institute of Public Health, University of Porto, Rua das Taipas, 135, Porto 4050-600, Portugal"}]},{"given":"C\u00e1tia","family":"In\u00e1cio","sequence":"additional","affiliation":[{"name":"Santa Casa da Miseric\u00f3rdia de Santar\u00e9m, Largo C\u00e2ndido dos Reis\u2014Apartado 23,  Santar\u00e9m 2001-901, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6310-4956","authenticated-orcid":false,"given":"Patr\u00edcia","family":"Padr\u00e3o","sequence":"additional","affiliation":[{"name":"Faculty of Nutrition and Food Sciences, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal"},{"name":"Institute of Public Health, University of Porto, Rua das Taipas, 135, Porto 4050-600, Portugal"}]},{"given":"Carla","family":"Lopes","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Porto, Al. Prof. Hern\u00e2ni Monteiro, Porto 4200-319, Portugal"},{"name":"Institute of Public Health, University of Porto, Rua das Taipas, 135, Porto 4050-600, Portugal"}]},{"given":"Joana","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Research Center of Physical Activity, Health and Leisure, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, Porto 4200-450, Portugal"}]},{"given":"Isabel","family":"Carmo","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, University of Lisbon, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7035-7799","authenticated-orcid":false,"given":"Pedro","family":"Moreira","sequence":"additional","affiliation":[{"name":"Faculty of Nutrition and Food Sciences, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal"},{"name":"Institute of Public Health, University of Porto, Rua das Taipas, 135, Porto 4050-600, Portugal"},{"name":"Research Center of Physical Activity, Health and Leisure, Faculty of Sports, University of Porto, Rua Dr. Pl\u00e1cido Costa, 91, Porto 4200-450, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2015,3,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"S152","DOI":"10.1111\/j.1753-4887.2012.00531.x","article-title":"Hydration, morbidity, and mortality in vulnerable populations","volume":"70","author":"Maughan","year":"2012","journal-title":"Nutr. 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