Risk models in cardiac surgery. Differences between mean and median of estimated mortality risk. A misconception
Risk scales are complex statistical tools that enable the preoperative risk of a patient referred for a surgery to be estimated. In cardiac surgery the calculated variable is the expected hospital mortality and its usefulness lies in comparing it to the obtained hospital mortality. To make this comp...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Conselleria de Salut i Consum del Govern de les Illes Balears |
| Repositorio: | Docusalut |
| Idioma: | inglés |
| OAI Identifier: | oai:docusalut.com:20.500.13003/17372 |
| Acceso en línea: | https://hdl.handle.net/20.500.13003/17372 |
| Access Level: | acceso abierto |
| Palabra clave: | Cardiac surgery Prediction Risk models EuroSCORE Median |
| Sumario: | Risk scales are complex statistical tools that enable the preoperative risk of a patient referred for a surgery to be estimated. In cardiac surgery the calculated variable is the expected hospital mortality and its usefulness lies in comparing it to the obtained hospital mortality. To make this comparison the expected mortality of the study population needs to be summarised by a statistic that represents the sample, with the mean commonly being used. The mean is negatively influenced by the extreme values, thus the median should conceptually be more reliable to use for the expected mortalities |
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