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• W2107869022 abstract "Prognostic models have been developed to estimate mortality and to compare outcomes in different intensive care units. However, these models need to be validated before their use in different populations. In this study, we assessed the performance of 3 recently developed general prognostic models (Acute Physiologic and Chronic Health Evaluation [APACHE] IV, Simplified Acute Physiology Score [SAPS] 3 and Mortality Probability Model III [MPM0-III]) in a population admitted at 3 medical-surgical Brazilian intensive care units. All patients admitted from July 2008 to December 2009 were evaluated for inclusion in the study. Standardized mortality ratios were calculated for all models. Calibration was assessed by the Hosmer-Lemeshow goodness-of-fit test. Discrimination was evaluated using the area under the receiver operator curve. A total of 5780 patients were included. Inhospital mortality was 9.1%. Discrimination was very good for all models (area under the receiver operator curve for APACHE IV, SAPS 3 and MPM0-III was 0.883, 0.855 and 0.840, respectively). APACHE IV showed better discrimination than SAPS 3 and MPM0-III (P < .001 for both comparisons). All models calibrated poorly and overestimated hospital mortality (Hosmer–Lemeshow statistic was 53.7, 134.2, 226.6 for APACHE IV, MPM0-III, and SAPS 3, respectively; P < .001 for all). In this study, all models showed poor calibration, while discrimination was very good for all of them. As this has been a common finding in validation studies, caution is warranted when using prognostic models for benchmarking." @default.
• W2107869022 created "2016-06-24" @default.
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• W2107869022 date "2012-08-01" @default.
• W2107869022 modified "2023-10-01" @default.
• W2107869022 title "Caution when using prognostic models: A prospective comparison of 3 recent prognostic models" @default.
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• W2107869022 doi "https://doi.org/10.1016/j.jcrc.2011.08.016" @default.
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