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Acta Médica Peruana

On-line version ISSN 1728-5917


VASQUEZ, Aida; HERRERA-PEREZ, Eder; TANTALEAN, José  and  ESCALANTE-KANASHIRO, Raffo. PRISM as predictor of mortality in pediatric intensive care unit of the National Institute of Child Health, Peru 2012. Acta méd. peruana [online]. 2016, vol.33, n.1, pp.9-14. ISSN 1728-5917.

Introduction: The PRISM scale is a predictor of mortality in pediatric patients which considers the risk for dying by assessing 14 physiological parameters. The scale has been used in different parts of the world, showing some discrepancies in its predictive power. Objectives: To assess the performance of the PRISM score as a predictor of mortality in patients hospitalized in the Pediatric Intensive Care Unit (PICU) of the Instituto Nacional de Salud del Niño (INSN) in Lima, Peru. Material and methods: We analyzed the database of all patients admitted to the PICU in the INSN during 2012. We calculated the ROC curve as a measurement for discriminative capacity. The calibration was assessed with Hosmer and Lemeshow test. We also calculated the standardized mortality rate (SMR). Results: Out of 388 patients who were admitted, 17.3% died. According to the PRISM score, 91.1% had "low risk", 7.1% had "moderate risk", and 1.8% had "high risk". We found an association between the risk categories in the PRISM scale and mortality (p<0.001). The ROC curve for the PRISM scale was 0.73 (95% IC: 0.66-0.80), the SMR was 1.01, and there was a good calibration (p= 0.65). Conclusions: The PRISM score shows adequate performance as a predictor for mortality.

Keywords : Intensive Care Units; Pediatric; Forecasting; Mortality.

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