{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T13:31:43Z","timestamp":1787923903321,"version":"build-2784847793"},"reference-count":22,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,10,20]],"date-time":"2023-10-20T00:00:00Z","timestamp":1697760000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010252","name":"\u015al\u0105ski Uniwersytet Medyczny w Katowicach","doi-asserted-by":"publisher","award":["PCN-2-022\/N\/0\/Z"],"award-info":[{"award-number":["PCN-2-022\/N\/0\/Z"]}],"id":[{"id":"10.13039\/501100010252","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Nutr."],"abstract":"<jats:sec><jats:title>Background and aims<\/jats:title><jats:p>Vitamin D plays a pleiotropic role in the human body. Some studies have suggested that hypovitaminosis D may serve as a marker of comorbidity severity and length of hospital stay. Hospitalized older adults patients with a higher comorbidity burden tend to have lower vitamin D status, which negatively impacts the length of their hospital stay. Vitamin D deficiency has been identified as a significant risk factor for a prolonged hospital stay. This study aimed to investigate the link between vitamin D status and prolonged hospital stays, focusing on geriatric patients, and to assess the variation in hospitalization duration among geriatric patients with different vitamin D statuses.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The study sample comprised of 422 patients aged over 60 years admitted to the geriatric department. Blood samples were collected in the morning on the day of admission. According to the diagnostic threshold defining serum 25(OH)D concentration approved for Central Europe, patients were divided into two groups (deficiency group and suboptimal group). Patients were divided into two groups based on hospitalization duration: the first, \u201cshorter hospitalization,\u201d included stays up to 11 days, whereas the second, \u201clonger hospitalization,\u201d encompassed stays of 12 days and above.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In total, 242 Caucasian patients, primarily women (172 women and 70 men), were recruited in the study. Patients with vitamin D deficiency had extended hospital stays compared with those with vitamin D levels below 49.92 nmol\/L: 10.0 (8.00\u201313.00) days vs. 9.00 (8.00\u201311.00) days, <jats:italic>P<\/jats:italic> = 0.044. Hospitalization length (in days) had a negative correlation with vitamin D blood status (nmol\/L) (<jats:italic>P<\/jats:italic> = 0.0005; <jats:italic>R<\/jats:italic> = \u22120.2243). ROC analysis indicated that patients with vitamin D levels below 31.2 nmol\/L had a 47% higher chance of extended hospitalization, whereas those with levels above 31.2 nmol\/L had a 77% higher chance of avoiding it. A significant majority of patients with suboptimal 25(OH)D levels experienced shorter hospital stays (\u226411 days) than those with vitamin D deficiency (64.6%), <jats:italic>P<\/jats:italic> = 0.045.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The study findings indicate that lower serum levels of 25(OH)D in hospitalized patients within the geriatric department are linked to extended hospital stays. Vitamin D holds potential as a predictor of hospitalization duration in geriatric patients. Nonetheless, further research is imperative to account for additional factors affecting health status and hospitalization duration in older adults individuals.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fnut.2023.1277350","type":"journal-article","created":{"date-parts":[[2023,10,20]],"date-time":"2023-10-20T06:14:37Z","timestamp":1697782477000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":8,"title":["Could vitamin D concentration be a marker of a long hospital stay in older adults patients?"],"prefix":"10.3389","volume":"10","author":[{"given":"Justyna","family":"Nowak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marzena","family":"Jabczyk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pawe\u0142","family":"Jagielski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bartosz","family":"Hudzik","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katarzyna","family":"Bruka\u0142o","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jakub","family":"Borszcz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara","family":"Zubelewicz-Szkodzi\u0144ska","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,10,20]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1186\/2049-3258-72-32","article-title":"Effects of vitamin D in the elderly population: current status and perspectives","volume":"72","author":"Bruy\u00e8re","year":"2014","journal-title":"Arch Public Health."},{"key":"B2","doi-asserted-by":"publisher","first-page":"106605","DOI":"10.1016\/j.phrs.2022.106605","article-title":"Vitamin D protects against depression: evidence from an umbrella meta-analysis on interventional and observational meta-analyses","volume":"187","author":"Musazadeh","year":"2023","journal-title":"Pharmacol Res."},{"key":"B3","doi-asserted-by":"publisher","first-page":"76","DOI":"10.1186\/s13098-023-01010-3","article-title":"Effect of vitamin D supplementation on type 2 diabetes biomarkers: an umbrella of interventional meta-analyses","volume":"15","author":"Musazadeh","year":"2023","journal-title":"Diabetol Metab Syndr."},{"key":"B4","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinthera.2023.07.020","article-title":"The impact of vitamin D supplementation on improving blood pressure: evidence obtained from an umbrella meta-analysis","author":"Meng","year":"2023","journal-title":"Clin Ther."},{"key":"B5","doi-asserted-by":"publisher","first-page":"e8","DOI":"10.1097\/BCR.0000000000000445","article-title":"Low vitamin D level on admission for burn injury is associated with increased length of stay","volume":"38","author":"Blay","year":"2017","journal-title":"J Burn Care Res."},{"key":"B6","doi-asserted-by":"publisher","first-page":"671","DOI":"10.1097\/CCM.0b013e318206ccdf","article-title":"Association of low serum 25-hydroxyvitamin D levels and mortality in the critically ill","volume":"39","author":"Braun","year":"2011","journal-title":"Crit Care Med."},{"key":"B7","doi-asserted-by":"publisher","first-page":"128","DOI":"10.3390\/nu11010128","article-title":"Hypovitaminosis D: a disease marker in hospitalized very old persons at risk of malnutrition","volume":"11","author":"Boccardi","year":"2019","journal-title":"Nutrients."},{"key":"B8","doi-asserted-by":"publisher","first-page":"297","DOI":"10.1007\/s10195-016-0414-y","article-title":"Is there an association between low serum 25-OH-D levels and the length of hospital stay in orthopaedic patients after arthroplasty?","volume":"17","author":"Maier","year":"2016","journal-title":"J Orthopaed Traumatol."},{"key":"B9","doi-asserted-by":"publisher","first-page":"525","DOI":"10.1155\/2013\/428479","article-title":"Hypovitaminosis D in geriatric acute care unit: a biomarker of longer length of stay","volume":"35","author":"Helard","year":"2013","journal-title":"Dis Markers."},{"key":"B10","doi-asserted-by":"publisher","first-page":"695","DOI":"10.1007\/s12603-013-0333-z","article-title":"Who is at risk of long hospital stay among patients admitted to geriatric acute care unit? 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