{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T15:55:52Z","timestamp":1782402952249,"version":"3.54.5"},"reference-count":52,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2025,4,16]],"date-time":"2025-04-16T00:00:00Z","timestamp":1744761600000},"content-version":"vor","delay-in-days":19,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,3,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Predicting hospital length of stay (LOS) can potentially improve healthcare resource allocation. Recent studies suggest that point-of-care ultrasound (POCUS), specifically measurements of muscle thickness (MT), may be valuable in assessing patient outcomes, including LOS. This study investigates the hypothesis that quadriceps MT and echo intensity (EI) can predict patient outcomes, particularly LOS.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Quadriceps MT and EI were measured using POCUS in patients admitted to a hospital\u2019s acute medical unit. Predictor variables included age, sex, MT, EI and the Charlson Comorbidity Index (CCI). The outcome variable was hospital LOS.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>One hundred twenty participants were included (average age 76\u2009\u00b1\u20097, with 64 women and 56 men). The mean LOS was 27\u2009\u00b1\u200931\u00a0days, and the mean MT was 20\u2009\u00b1\u20096\u00a0mm. Sex-based differences in MT were statistically significant (P\u2009=\u2009.032). Patients with prolonged LOS over 30\u00a0days had lower MT (mean 17\u00a0mm vs. 21\u00a0mm, P\u2009&amp;lt;\u2009.0001). One unit increase in MT was significantly associated with ~1.5 fewer days of hospital LOS, and one CCI score increase was associated with almost three more days of hospital LOS. Having low MT significantly increased the odds of staying in the hospital longer than 30\u00a0days by more than three times in all models.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Muscle thickness is a strong predictor of hospital LOS, highlighting the potential of POCUS for assessing patient outcomes.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ageing\/afaf103","type":"journal-article","created":{"date-parts":[[2025,4,16]],"date-time":"2025-04-16T13:38:14Z","timestamp":1744810694000},"source":"Crossref","is-referenced-by-count":5,"title":["Quadriceps muscle thickness as measured by point-of-care ultrasound is associated with hospital length of stay among hospitalised older patients"],"prefix":"10.1093","volume":"54","author":[{"given":"Uyanga","family":"Ganbat","sequence":"first","affiliation":[{"name":"Department of Medicine , , 186-828 W 10th Street, Vancouver, BC V5Z 1M9 ,","place":["Canada"]},{"name":"Gerontology and Diabetes Research Laboratory, Division of Geriatric Medicine, University of British Columbia , , 186-828 W 10th Street, Vancouver, BC V5Z 1M9 ,","place":["Canada"]},{"name":"Department of Medicine, University of British Columbia , 317-2194 Health Sciences Mall, Vancouver, BC V6T 1Z3 ,","place":["Canada"]},{"name":"Edwin S. 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