• Lindsey McVey, David Young, Jessie Hulst, Sarah Bradley, Adrian Raudaschl, Thomais Karagiozoglou, Efstratia Daskalou, Vincent Choudhery, Isobel Macleod, Koen Joosten, Neil Spenceley, and Konstantinos Gerasimidis.
• Human Nutrition, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, G31 2ER, UK.
• Resuscitation. 2017 Aug 1; 117: 118-121.

AimIn sick children who are unable to be weighed estimation of weight is often required, but the routinely used equations lack accuracy and precision. This study aimed to develop a novel equation (Children's European Estimator of Weight-CEEW) using measurements of mid-upper arm circumference (MUAC) and other predictors in multinational groups of sick children in Europe.MethodsWeight estimation equations were developed in 2086 children from the UK, Greece and the Netherlands, using a combination of demographics, MUAC and height measurements. The final CEEW equations were compared against the performance of the European Resuscitation Council (ERC), Advanced Paediatric Life Support (APLS) and the Cattermole equations.ResultsTwo final CEEW equations were developed, incorporating measurements of age, gender and MUAC, with (CEEW1) or without (CEEW2) the inclusion of height. Both equations presented very high coefficients of determination (R2>96.5%), minimal mean prediction error and narrower limits of agreement than the comparator equations. 88% (CEEW1) and 77% (CEEW2) of weight estimates fell within 15% of measured body weight. These figures compared with less than 57%, 57% and 37% for the ERC, APLS and Cattermole equations respectively.ConclusionThe CEEW equations performed substantially better than other routinely used equations for weight estimation. An electronic application for mobile use is presented.Copyright © 2017 Elsevier B.V. All rights reserved.

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