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CHecklist for critical Appraisal and data extraction for systematic Reviews of prediction Modelling Studies (CHARMS) and Prediction model Risk Of Bias ASsessment Tool (PROBAST) were applied.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Nineteen observational studies were included. The main predictors were sociodemographic variables, such as age (18 studies, 94.7%) and sex (17, 89.5% studies), tumour characteristics (TNM stage (18 studies, 94.7%), histological subtype\/grade (15 studies, 78.9%), lymphovascular invasion (10 studies, 52.6%) and treatment with chemotherapy (13 studies, 68.4%). C\u2010index values were presented in 14 studies. The overall risk of bias assessed using PROBAST led to 100% of studies being classified as high risk (the analysis domain was rated to be at high risk of bias in all the studies), and 52.6% showed low applicability. Only 5 studies (26.3%) included an external validation and 2 (10.5%) included a prospective study design.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Using clinical predictors to assess the risk of bladder\u2010specific cancer mortality is a feasibility alternative. However, the studies showed a high risk of bias and their applicability is uncertain. Studies should improve the conducting and reporting, and subsequent external validation studies should be developed.<\/jats:p><\/jats:sec>","DOI":"10.1111\/eci.13822","type":"journal-article","created":{"date-parts":[[2022,6,1]],"date-time":"2022-06-01T06:43:08Z","timestamp":1654065788000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Mortality prediction models after radical cystectomy for bladder tumour: A systematic review and critical appraisal"],"prefix":"10.1111","volume":"52","author":[{"given":"Pau","family":"Sarri\u00f3\u2010Sanz","sequence":"first","affiliation":[{"name":"Urology Services University Hospital of San Juan de Alicante  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laura","family":"Martinez\u2010Cayuelas","sequence":"additional","affiliation":[{"name":"Urology Services University Hospital of San Juan de Alicante  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1665-0860","authenticated-orcid":false,"given":"Blanca","family":"Lumbreras","sequence":"additional","affiliation":[{"name":"Department of Public Health, History of Science and Gynecology Miguel Hern\u00e1ndez University, and CIBER en Epidemiolog\u00eda y Salud P\u00fablica  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laura","family":"S\u00e1nchez\u2010Caballero","sequence":"additional","affiliation":[{"name":"Urology Services University Hospital of San Juan de Alicante  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5959-9631","authenticated-orcid":false,"given":"Antonio","family":"Palaz\u00f3n\u2010Bru","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine Miguel Hern\u00e1ndez University  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vicente F.","family":"Gil\u2010Guill\u00e9n","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine Miguel Hern\u00e1ndez University  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1396-0484","authenticated-orcid":false,"given":"Luis","family":"G\u00f3mez\u2010P\u00e9rez","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine Miguel Hern\u00e1ndez University  Alicante Spain"},{"name":"Urology Services University General Hospital of Elx  Alicante Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,6,13]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eururo.2012.07.033"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eururo.2018.09.001"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eururo.2020.03.055"},{"key":"e_1_2_9_5_1","unstructured":"ECIS \u2010 European Cancer Information System From [Internet].https:\/\/ecis.jrc.ec.europa.eu. 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