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Finger counting method is more accurate than age-based weight estimation formulae in estimating the weight of Hong Kong children presenting to the emergency department

So, Jerome LT, Chow, Eric PF, Cattermole, Giles N, Graham, Colin A and Rainer, Timothy 2016. Finger counting method is more accurate than age-based weight estimation formulae in estimating the weight of Hong Kong children presenting to the emergency department. Emergency Medicine Australasia 28 (6) , pp. 691-697. 10.1111/1742-6723.12644

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Abstract

OBJECTIVE: The aim of the present study was to evaluate the finger counting method and compare its performance with four commonly used age-based weight estimation formulae in children aged 1-9 years presenting to the ED in Hong Kong. METHODS: A cross-sectional, observational study of children aged 1-9 years who presented to the ED of a tertiary referral hospital in Hong Kong over a 6 month period was conducted. Actual weight was compared with estimated weight using the finger counting method and four commonly used age-based weight estimation formulae. Bland-Altman analysis was performed to evaluate the degree of agreement in which the mean percentage difference (MPD) and 95% limits of agreement (LOA) were calculated. Root mean squared error (RMSE) and proportions of weight estimates within 10%, 15% and 20% of actual weight were determined. RESULTS: A total of 4178 children were included. The finger counting method was the most accurate method (MPD 0.1%; 95% LOA -34.0% to 34.2%). The original Advanced Paediatric Life Support (APLS) formula (MPD -7.0%; 95% LOA -38.4% to 24.3%) and the updated APLS formula (MPD -0.4%; 95% LOA -38.5% to 37.8%) underestimated weight whereas the Luscombe formula (MPD 7.2%; 95% LOA -31.8% to 46.2%) and the Best Guess formula (MPD 10.6%; 95% LOA -27.3% to 48.4%) overestimated weight. The finger counting method had smallest RMSE of 4.06 kg and estimated the largest proportion of children within 10%, 15% and 20% of actual weight. CONCLUSION: The finger counting method outperforms the commonly used age-based weight estimation formulae in children aged 1-9 years presenting to the ED in Hong Kong.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Uncontrolled Keywords: Dimensional Measurement Accuracy; Hong Kong; bodyweights and measures; child; infant; preschool.
Publisher: Wiley
ISSN: 1742-6731
Date of Acceptance: 22 May 2016
Last Modified: 23 May 2018 13:23
URI: http://orca-mwe.cf.ac.uk/id/eprint/103023

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