{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,6]],"date-time":"2026-06-06T23:50:20Z","timestamp":1780789820969,"version":"3.54.1"},"reference-count":28,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T00:00:00Z","timestamp":1641945600000},"content-version":"vor","delay-in-days":11,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the role of dementia in pneumonia among geriatric patients with hip fracture and further develop an algorithm for stratifying risk of developing postoperative pneumonia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The algorithm was developed after retrospectively analyzing 1344 hip fracture patients in the National Clinical Research Center for Orthopedics, Sports Medicine, and Rehabilitation from 1992 to 2012. Twenty\u2010eight variables were analyzed for evaluating the ability to predict postoperative pneumonia. The validation of the algorithm was performed in the MIMIC\u2010III database after enrolling 235 patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>One thousand five hundred and seventy\u2010nine patients were enrolled, 4.69% patients had postoperative pneumonia in our hospital, and 17.02% suffered pneumonia in the MIMIC\u2010III database. Dementia patients had more postoperative pneumonia (12.68%<jats:italic>vs<\/jats:italic>4.24%,<jats:italic>P<\/jats:italic>\u00a0=\u00a00.0075), as compared with patients without dementia. The algorithm included nine predictors: dementia, age, coronary heart disease, the American Society of Anesthesiologists score, surgical method, mechanical ventilation, anemia, hypoproteinemia, and high creatinine. Internal validation showed the algorithm with dementia could improve predictive performance, while external validation found the algorithm with or without dementia both had similar and good predictive ability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The algorithm has the potential to be a pragmatic risk prediction tool to calculate risk of pneumonia in clinical practice and it may also be applicable in critically ill hip fracture patients with dementia.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13199","type":"journal-article","created":{"date-parts":[[2022,1,13]],"date-time":"2022-01-13T05:04:53Z","timestamp":1642050293000},"page":"129-138","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Early Detection of Pneumonia with the Help of Dementia in Geriatric Hip Fracture Patients"],"prefix":"10.1111","volume":"14","author":[{"given":"Miao\u2010tian","family":"Tang","sequence":"first","affiliation":[{"name":"Peking University People's Hospital Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shang","family":"Li","sequence":"additional","affiliation":[{"name":"The National Clinical Research Center for Orthopedics, Sports Medicine &amp; Rehabilitation, General Hospital of Chinese PLA Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao","family":"Liu","sequence":"additional","affiliation":[{"name":"The National Clinical Research Center for Orthopedics, Sports Medicine &amp; Rehabilitation, General Hospital of Chinese PLA Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiang","family":"Huang","sequence":"additional","affiliation":[{"name":"The National Clinical Research Center for Orthopedics, Sports Medicine &amp; Rehabilitation, General Hospital of Chinese PLA Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dian\u2010ying","family":"Zhang","sequence":"additional","affiliation":[{"name":"Peking University People's Hospital Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8588-679X","authenticated-orcid":false,"given":"Ming\u2010xing","family":"Lei","sequence":"additional","affiliation":[{"name":"The National Clinical Research Center for Orthopedics, Sports Medicine &amp; Rehabilitation, General Hospital of Chinese PLA Beijing China"},{"name":"Department of Orthopaedic Surgery Hainan Hospital of Chinese PLA General Hospital Beijing China"},{"name":"Chinese PLA Medical School Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,1,12]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.3346\/jkms.2021.36.e238"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40520-021-01864-5"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12883-014-0175-2"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00198-009-0920-3"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000019048"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph18158118"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2021.06.006"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.284.1.47"},{"key":"e_1_2_7_10_1","article-title":"\u03b2\u2010Adrenergic blockade in patients with dementia and hip fracture is associated with decreased postoperative mortality","author":"Ioannidis I","year":"2021","journal-title":"Eur J Trauma Emerg Surg"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2021.04.030"},{"key":"e_1_2_7_12_1","article-title":"The mortality burden in patients with hip fractures and dementia","author":"Ioannidis I","year":"2021","journal-title":"Eur J Trauma Emerg Surg"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.38643.663843.55"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000019108"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/ggi.13559"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00198-016-3624-5"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/joim.12586"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.injury.2016.07.022"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2009.1462"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajic.2007.05.011"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1093\/pubmed\/fdv042"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jamda.2010.12.099"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1038\/sdata.2016.35"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.101.23.e215"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1159\/000232392"},{"key":"e_1_2_7_26_1","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1111\/j.2517-6161.1996.tb02080.x","article-title":"Regression shrinkage and selection via the Lasso","volume":"58","author":"Tibshirani R","year":"1996","journal-title":"J R Stat Soc B"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1097\/BOT.0000000000001026"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.124.1.328"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1161\/STROKEAHA.114.005023"}],"container-title":["Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/os.13199","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/os.13199","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/os.13199","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,9,16]],"date-time":"2024-09-16T05:39:35Z","timestamp":1726465175000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/os.13199"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1]]},"references-count":28,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,1]]}},"alternative-id":["10.1111\/os.13199"],"URL":"https:\/\/doi.org\/10.1111\/os.13199","archive":["Portico"],"relation":{},"ISSN":["1757-7853","1757-7861"],"issn-type":[{"value":"1757-7853","type":"print"},{"value":"1757-7861","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1]]},"assertion":[{"value":"2021-07-09","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-12-19","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-01-12","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}