Credibility of the caregivers as a source of information on the weight of a pediatric patient in emergencies. Estimating body weight using age-dependent formulas
Jan Stachurski 1  
,   Maciej Rudzki 2  
,   Anna Janus-Młodawska 1  
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Department of Pediatric Emergency Medicine, Medical University of Warsaw, Poland
MEDITRANS The Voivodship Emergency Medical Service and Sanitary Transport, Warsaw, Poland
Jan Stachurski   

Department of Pediatric Emergency Medicine, Medical University of Warsaw, Żwirki i Wigury 63a, 02-091 Warsaw, Poland. Tel./fax: +48 22 317 93 01.
Submission date: 2021-05-15
Final revision date: 2021-07-23
Acceptance date: 2021-07-23
Online publication date: 2021-10-20
The child's body weight is very important in the proper pharmacotherapy in emergency situations.

The aim of the study is to assess the reliability of information on the current body weight of a pediatric patient obtained by taking history in emergencies. Additionally, the effectiveness of commonly used age-dependent weight formulas for children was analysed.

Material and methods:
The study was retrospective. We have collected 1103 cases of pediatric patients admitted to the Emergency Department in the second half of 2018, in whom data on body weight were obtained by history taking and by weighing the patient. Subsequently, based on the patient’s age, their weight was estimated using 13 different formulas.

Results and discussion:
Parents, caregivers or teenagers are reliable sources of information about the patient’s actual weight. In 86% of cases the data from the medical history were within the range defined as acceptable (±10% in comparison with the actual body weight). Underestimating body weight was a more frequent mistake than its overestimation. None of the formulas gave half as accurate results as medical history data. Of all the formulas, the best results were reported for the Park formula, however, only 42% of the estimates were within the acceptable range.

Weight information obtained from children and their parents or caregivers is more reliable in terms of determining the child’s actual body weight than any formula for body weight estimation. If it is necessary to use any of the formulas for approximate body weight, it is most preferable to use the Park formula.

None declared.
None declared.
Shi R, Derendorf H. Pediatric dosing and body size in biotherapeutics. Pharmaceutics. 2010;2(4):389–418.
Villarejo-Rodríguez MG, Rodríguez-Martín B. Parental approach to the management of childhood fever: Differences between Health professional and non-health professional parents. Int J Environ Res Public Health. 2019;16(20):4014.
Haber JJ, Atti S, Gerber LM, Waseem M. Promoting an obesity education program among minority patients in a single urban pediatric Emergency Department (ED). Int J Emerg Med. 2015;8(1):38.
Chau S, Oldman S, Smith SR, Lin CA, Ali S, Duffy VB. Online behavioral screener with tailored obesity prevention messages: Application to a pediatric clinical setting. Nutrients. 2021;13(1):223.
Britnell S. To compare the accuracy of the Broselow-Luten Tape and APLS, Theron and Shann's formulae in prediction of weight in children aged 5 to 10 years in Auckland, Auckland University of Technology. 2014.
Winship C, Williams B, Boyle M. Which paediatric weight formula is best suited for the out-of-hospital field? J Paramedic Practice. 2012;4(9):593–601. doi:10.12968/jpar.2012.4.10.593.
Luscombe MD, Owens BD, Burke D. Weight estimation in paediatrics: a comparison of the APLS formula and the formula 'Weight=3(age)+7'. Emerg Med J. 2011;28(7):590–593.
Graves L, Chayen G, Peat J, O'Leary F. A comparison of actual to estimated weights in Australian children attending a tertiary children's' hospital, using the original and updated APLS, Luscombe and Owens, Best Guess formulae and the Broselow tape. Resuscitation. 2014;85(3):392–396.
So TY, Farrington E, Absher RK. Evaluation of the accuracy of different methods used to estimate weights in the pediatric population. Pediatrics. 2009;123(6):1045–1051.
Park J, Kwak YH, Kim DK, et al. A new age-based formula for estimating weight of Korean children. Resuscitation. 2012;83(9):1129–1134. .
Janus-Młodawska A, Stachurski J, Rzepka R. Prehospital management of thermal burns in children [in Polish]. Na Ratunek. 2019;2:8–16.
Badeli H, Hashemian H, Nazari N, Rad AH. The percentage of error of different weight estimation methods toward actual weight in children admitted to 17 Shahrivar Hospital. Int J Prev Med. 2015;6:13.
Partridge RL, Abramo TJ, Haggarty KA, et al. Analysis of parental and nurse weight estimates of children in the pediatric emergency department. Pediatr Emerg Care. 2009;25(12):816–818.
AlHarbi TM, AlGarni A, AlGamdi F, Jawish M, Wani TA, Abu-Shaheen AK. The Accuracy of Broselow Tape weight estimate among pediatric population. Biomed Res Int. 2016;2016:7042947.
Park JW, Kwon H, Jung JY, et al. "Weighing Cam": A New Mobile Application for Weight Estimation in Pediatric Resuscitation. Prehosp Emerg Care. 2020;24(3):441–450.
Lundahl A, Kidwell KM, Nelson TD. Parental underestimates of child weight: a meta-analysis. Pediatrics. 2014;133(3):1–15.
Regulation of the Polish Minister of Health of 6 April 2020 on the types, scope and templates of medical documen-tation and the method of its processing Dz.U. 2020 poz. 666. Accessed: 14.05.2021.
Chaychenko T. Risk related cardiovascular changes in metabolically healthy obese adolescents. Pol Ann Med. 2016;23(2):87–91.
Maślanko K, Graff K, Stępień A, Rekowski W. Evaluation of postural stability in children depending on the body mass index. Pol Ann Med. 2020;27(1):34–38.