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Univariable and multivariable analysis were used to identify associated factors. Median overall survival and survival curves were analyzed. The percentage of missed diagnosis in IPD patients was identified.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>We included 350 palliative care patients. Nearly all patients had cancer diagnosis (96.6%). The overall prevalence of delirium was 44.0%. The independent associated factors of delirium were age\u2009\u2265\u200963\u00a0years (adjusted odds ratio [aOR], 7.0; 95% CI, 2.2\u201322.9), palliative performance scale\u2009\u2264\u200920% (aOR, 54.5; 95% CI, 13.1\u2013228.0), brain metastasis (aOR, 15.6; 95% CI, 3.7\u201366.7), urinary tract infection (aOR, 18.8; 95% CI, 4.7\u201375.5), sepsis (aOR, 59.0; 95% CI, 4.4\u2013797.8), hyponatremia (aOR, 8.8; 95% CI, 2.6\u201329.8), and hypercalcemia (not applicable). Interestingly, opioids and benzodiazepines were not associated with delirium. Delirious patients had significantly shorter survival (median survival 11\u00a0days). Delirium diagnoses were missed for 76.1%.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Nearly half of the palliative care patients had delirium, which was associated with noticeably short survivals. We identified the independent factors associated with the delirium. Despite having a remarkably high prevalence rate and being a well-known poor prognostic factor, there was still a very high rate of missed delirium diagnoses. Effective, routine, delirium screening of palliative care patients needs to be emphasized.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00520-021-06367-7","type":"journal-article","created":{"date-parts":[[2021,7,2]],"date-time":"2021-07-02T05:02:34Z","timestamp":1625202154000},"page":"7949-7956","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The prevalence, associated factors, clinical impact, and state of diagnosis of delirium in palliative care patients"],"prefix":"10.1007","volume":"29","author":[{"given":"Watanachai","family":"Klankluang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sasima","family":"Tongsai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chairat","family":"Sriphirom","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arunotai","family":"Siriussawakul","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pratamaporn","family":"Chanthong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5320-6457","authenticated-orcid":false,"given":"Supakarn","family":"Tayjasanant","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,7,2]]},"reference":[{"issue":"3","key":"6367_CR1","doi-asserted-by":"publisher","first-page":"550","DOI":"10.1007\/s11920-015-0550-8","volume":"17","author":"L Grassi","year":"2015","unstructured":"Grassi L, Caraceni A, Mitchell AJ, Nanni MG, Berardi MA, Caruso R, Riba M (2015) Management of delirium in palliative care: a review. 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