{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T17:03:20Z","timestamp":1792602200134,"version":"4.5.0"},"reference-count":35,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2025,8,7]],"date-time":"2025-08-07T00:00:00Z","timestamp":1754524800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"\nIntroduction<\/jats:title>\nIt is well-established that vitamin D deficiency increases with age. This study aims to investigate the relationship between vitamin D levels, comprehensive geriatric assessment and anthropometric measurements in elderly individuals.<\/jats:p>\n<\/jats:sec>\n\nMethods<\/jats:title>\nIn this retrospective cross-sectional analytical study, data from patients aged 65\u2013100 registered with \u0130zmir City Hospital Home Care Services were analyzed. The patients\u2019 vitamin D levels were compared with their sociodemographic and clinical data, anthropometric measurements (BMI, ABSI, body fat percentage), and geriatric assessment results (activities of daily living, nutrition, mental status, depression, frailty, and sarcopenia). Data were analyzed using SPSS 26.0 Statistics program.<\/jats:p>\n<\/jats:sec>\n\nResults<\/jats:title>\nThis retrospective cross-sectional study included 439 elderly individuals aged 65\u2013100 years receiving home healthcare services. In univariate analysis, no significant associations were found between vitamin D and other variables, except for hypertension (p\u2009=\u20090.049). ABSI values were higher in individuals vitamin D level with severe deficient and deficient compared to other groups, while BMI levels were found to be higher in the vitamin D deficient group (p\u2009<\u20090.001, p\u2009<\u20090.001, respectively). Additionally, the severe deficiency group had a higher frequency of pressure ulcers and lower Barthel Index scores (p\u2009=\u20090.033, p\u2009=\u20090.026, respectively). Correlation analysis revealed a significant negative relationship between vitamin D levels and ABSI (r\u2009=\u2009\u22120.184, p\u2009<\u20090.05) and the presence of pressure ulcers (r\u2009=\u2009\u22120.113, p\u2009<\u20090.05). Regression analysis confirmed these negative associations with ABSI (\u03b2\u2009=\u2009\u22120.179, p\u2009<\u20090.05) and pressure ulcers (\u03b2\u2009=\u2009\u22120.113, p\u2009<\u20090.05). Hypertension and BMI lost their significance in correlation and regression analyses.<\/jats:p>\n<\/jats:sec>\n\nConclusion<\/jats:title>\nLower vitamin D levels were associated with higher ABSI values and a greater frequency of pressure ulcers. ABSI may be useful in predicting vitamin D deficiency, and monitoring vitamin D levels in patients with pressure ulcers is recommended.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0329649","type":"journal-article","created":{"date-parts":[[2025,8,7]],"date-time":"2025-08-07T17:26:52Z","timestamp":1754587612000},"page":"e0329649","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":2,"title":["The relationship between vitamin D levels, comprehensive geriatric assessment and anthropometric measurements"],"prefix":"10.1371","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1575-6946","authenticated-orcid":true,"given":"Meryem","family":"Cakir","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasemin","family":"Ozkaya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nafiye Ebru","family":"Terzi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olgu","family":"Aygun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Halime Seda","family":"Kucukerdem","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elif","family":"Saki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2025,8,7]]},"reference":[{"key":"pone.0329649.ref001","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1016\/j.clnesp.2019.10.016","article-title":"Relation between vitamin D and geriatric syndrome","volume":"35","author":"E Azzam","year":"2020","journal-title":"Clin Nutr ESPEN"},{"key":"pone.0329649.ref002","volume-title":"Summary report on the consultation on the development of regional guidelines on vitamin D supplementation for 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