{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T01:49:46Z","timestamp":1780364986976,"version":"3.54.1"},"reference-count":45,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2023,12,27]],"date-time":"2023-12-27T00:00:00Z","timestamp":1703635200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["aspenjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Parenter Enteral Nutr"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Most critically ill patients with COVID\u201019 experience malnutrition and weight loss associated with negative clinical outcomes. Our primary aim was to assess body composition during acute and late phase of illness in these patients in relation to clinical outcome and secondary to tailored nutrition support.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This prospective cohort study included adult critically ill patients with COVID\u201019. Body composition (fat\u2010free mass [FFM] [exposure of interest], fat mass [FM], skeletal muscle mass [SMM], and phase angle [PA]) was determined with multifrequency bioelectrical impedance analyses in the acute and late phase. Nutrition support data were collected simultaneously. Clinical outcome was defined as intensive care unit (ICU) survival (primary outcome) and 30\u201390 days thereafter, duration of mechanical ventilation, and length of ICU stay and length of hospital stay (LOS). Nonparametric tests and regression analyses were performed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We included 70 patients (73% male, median age 60 years). Upon admission, median BMI was 30\u2009kg\/m<jats:sup>2<\/jats:sup>, 54% had obesity (BMI\u2009&gt;\u200930\u2009kg\/m<jats:sup>2<\/jats:sup>). Median weight change during ICU stay was \u22123\u2009kg: +3\u2009kg FM and \u22126\u2009kg FFM (\u22124\u2009kg SMM). Body composition changed significantly (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001). Regarding clinical outcome, only low PA was associated with prolonged LOS (odds ratio\u2009=\u20090.83, 95% CI\u2009=\u20090.72\u20130.96; <jats:italic>P<\/jats:italic>\u2009=\u20090.015). Patients with optimal protein intake (&gt;80%) during acute phase maintained significantly more FFM (2.7\u2009kg, <jats:italic>P<\/jats:italic>\u2009=\u20090.047) in the late phase compared with patients who received &lt;80%.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>FFM decreased significantly during acute and late phase of illness, but we observed no association with ICU survival. Only low PA was associated with prolonged LOS. FFM wasting likely occurred because of disease severity and immobility.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jpen.2585","type":"journal-article","created":{"date-parts":[[2023,11,30]],"date-time":"2023-11-30T21:33:45Z","timestamp":1701380025000},"page":"192-198","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Association between fat\u2010free mass and survival in critically ill patients with COVID\u201019: A prospective cohort study"],"prefix":"10.1002","volume":"48","author":[{"given":"Patty L. 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