• Lahn Straney, Archie Clements, Roger C Parslow, Gale Pearson, Frank Shann, Jan Alexander, Anthony Slater, and ANZICS Paediatric Study Group and the Paediatric Intensive Care Audit Network.
• 1School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia. 2School of Population Health, The University of Queensland, Brisbane, QLD, Australia. 3Centre for Epidemiology and Biostatistics, University of Leeds, Leeds, United Kingdom. 4Birmingham Children's Hospital, Birmingham, United Kingdom. 5Royal Children's Hospital, Melbourne, VIC, Australia. 6Australian and New Zealand Intensive Care Society, Brisbane, QLD, Australia. 7Royal Children's Hospital, Brisbane, QLD, Australia.
• Pediatr Crit Care Me. 2013 Sep 1; 14 (7): 673-81.

ObjectivesTo provide an updated version of the Paediatric Index of Mortality 2 for assessing the risk of mortality among children admitted to an ICU.DesignInternational, multicenter, prospective cohort study.SettingSixty ICUs that accept pediatric admissions in Australia, New Zealand, Ireland, and the United Kingdom.PatientsAll children admitted in 2010 and 2011 younger than 18 years old at the time of admission and either died in ICU or were discharged. Patients who were transferred to another ICU were not included. Fifty-three thousand one hundred twelve patient admissions were included in the analysis.InterventionsNone.Measurement And Main ResultsA revised prediction model was built using logistic regression. Variable selection was based on significance at the 95% level and overall improvement of the model's discriminatory performance and goodness of fit. The final model discriminated well (area under the curve, 0.88, 0.88-0.89); however, the model performed better in Australia and New Zealand than in the United Kingdom and Ireland (area under the curve was 0.91, 0.90-0.93 and 0.85, 0.84-0.86, respectively).ConclusionsPaediatric Index of Mortality 3 provides an international standard based on a large contemporary dataset for the comparison of risk-adjusted mortality among children admitted to intensive care.

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