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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003255naa a2200397 4500
001oai:prod.swepub.kib.ki.se:145637121
003SwePub
008240701s2020 | |||||||||||000 ||eng|
024a http://kipublications.ki.se/Default.aspx?queryparsed=id:1456371212 URI
024a https://doi.org/10.1136/bmjopen-2020-0440282 DOI
040 a (SwePub)ki
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Mei, J4 aut
2451 0a Development and external validation of a COVID-19 mortality risk prediction algorithm: a multicentre retrospective cohort study
264 c 2020-12-24
264 1b BMJ,c 2020
520 a This study aimed to develop and externally validate a COVID-19 mortality risk prediction algorithm.DesignRetrospective cohort study.SettingFive designated tertiary hospitals for COVID-19 in Hubei province, China.ParticipantsWe routinely collected medical data of 1364 confirmed adult patients with COVID-19 between 8 January and 19 March 2020. Among them, 1088 patients from two designated hospitals in Wuhan were used to develop the prognostic model, and 276 patients from three hospitals outside Wuhan were used for external validation. All patients were followed up for a maximal of 60 days after the diagnosis of COVID-19.MethodsThe model discrimination was assessed by the area under the receiver operating characteristic curve (AUC) and Somers’ D test, and calibration was examined by the calibration plot. Decision curve analysis was conducted.Main outcome measuresThe primary outcome was all-cause mortality within 60 days after the diagnosis of COVID-19.ResultsThe full model included seven predictors of age, respiratory failure, white cell count, lymphocytes, platelets, D-dimer and lactate dehydrogenase. The simple model contained five indicators of age, respiratory failure, coronary heart disease, renal failure and heart failure. After cross-validation, the AUC statistics based on derivation cohort were 0.96 (95% CI, 0.96 to 0.97) for the full model and 0.92 (95% CI, 0.89 to 0.95) for the simple model. The AUC statistics based on the external validation cohort were 0.97 (95% CI, 0.96 to 0.98) for the full model and 0.88 (95% CI, 0.80 to 0.96) for the simple model. Good calibration accuracy of these two models was found in the derivation and validation cohort.ConclusionThe prediction models showed good model performance in identifying patients with COVID-19 with a high risk of death in 60 days. It may be useful for acute risk classification.
700a Hu, WH4 aut
700a Chen, QJ4 aut
700a Li, C4 aut
700a Chen, ZS4 aut
700a Fan, YJ4 aut
700a Tian, SW4 aut
700a Zhang, ZH4 aut
700a Li, B4 aut
700a Ye, QF4 aut
700a Yue, J4 aut
700a Wang, QLu Karolinska Institutet4 aut
710a Karolinska Institutet4 org
773t BMJ opend : BMJg 10:12, s. e044028-q 10:12<e044028-x 2044-6055
856u https://bmjopen.bmj.com/content/bmjopen/10/12/e044028.full.pdf
8564 8u http://kipublications.ki.se/Default.aspx?queryparsed=id:145637121
8564 8u https://doi.org/10.1136/bmjopen-2020-044028

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