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Year : 2020  |  Volume : 23  |  Issue : 9  |  Page : 1229-1236

Comparison of age-based weight estimation with actual measured weight in children aged one to twelve years in Enugu

1 Department of Paediatrics, University of Nigeria Teaching Hospital, Enugu, Enugu State, Nigeria
2 Child Survival Unit, Medical Research Council UK, The Gambia Unit, Fajara, The Gambia, West Africa
3 Department of Paediatrics, Enugu State University Teaching Hospital, Enugu, Enugu State, Nigeria

Correspondence Address:
Dr. K K Iloh
Department of Paediatrics, College of Medicine, University of Nigeria, Enugu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njcp.njcp_41_20

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Aims: This study was carried out to evaluate the degree of accuracy of age-based weight estimation methods in assessing the weight of the Nigerian child. Method: The weights of one thousand, four hundred and fifty-six (1,456) children were measured and compared with the updated Advanced Paediatric Life Support (APLS), Best guess, Nelson and Luscombe & Owen methods. Result: The updated APLS, Nelson and Luscombe & Owen methods underestimated the weights in younger children while overestimating in older ones. Best guess overestimated the weights across all ages. The Nelson formula had the best agreement within 10% and 20% of the measured weights among all methods. A linear regression analysis produced an equation for weight estimation: weight (W) = 2.058 Y + 9.925, where W is weight in kilogram and Y is the age in years. Conclusion: None of the weight estimation formulae assessed was entirely accurate in our study, though the Nelson method showed superior agreement.

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