A comparison of the performance of different age-based paediatric weight estimation formulae in Hong Kong children
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AbstractObjective: To evaluate the performance of five existing age-based weight estimation formulae - the original and updated Advanced Paediatric Life Support (APLS) formulae, Luscombe formula, Best Guess formula, Chinese Age Weight Rule (CAWR) - as well as a new two-part weight estimation formula, the Chinese Age Weight Rule-3 (CAWR-3), in Hong Kong children presenting to the emergency department (ED). Methods: Data based on children aged 1-12 who presented to the ED of a tertiary referral centre in Hong Kong over a six-month period. Actual weight was compared against estimated weight from the weight estimation formulae. Level of agreement was assessed by Bland-Altman analysis using mean percentage difference (MPD) and 95% limits of agreement (LOA). Root mean squared error (RMSE) and proportions of weight estimates within 10%, 15% and 20% of actual weight were calculated. Results: A total of 4600 children were included. The CAWR-3 outperformed the five existing weight estimation formulae. The CAWR-3 had the least MPD in age 4-12 (MPD +3.2%), as well as the second least MPD in age 1-12 (MPD -0.7%). The CAWR-3 had narrowest 95% LOA in age 1-3 (95% LOA -32.6% to 21.9%) and the second narrowest 95% LOA in age 112 (95% LOA -37.5% to 36.1%). The CAWR-3 had the smallest RMSE of 6.33 kg in age 4-12 and the smallest RMSE of 4.90 kg in age 1-12. Furthermore, the CAWR-3 had the highest proportion of weight estimates within 10%, 15% and 20% of actual weight. Conclusion: The CAWR-3 outperforms the five existing age-based weight estimation formulae in Hong Kong children presenting to the emergency department.
All Author(s) ListSo JLT, Chow EPF, Cattermole GN, Graham CA, Rainer TH
Journal nameHONG KONG JOURNAL OF EMERGENCY MEDICINE
Year2016
Month1
Volume Number23
Issue Number1
PublisherMEDCOM LTD
Pages3 - 12
ISSN1024-9079
LanguagesEnglish-United Kingdom
KeywordsBody weights and measures, Chinese,dimensional measurement accuracy, infant,preschool child
Web of Science Subject CategoriesEmergency Medicine;Emergency Medicine

Last updated on 2021-24-02 at 01:24