Evaluation of the Mercy weight estimation method in Ouelessebougou, Mali

BMC Public Health

Research Article

Mohamed Lamine Alhousseini¹  Moussa Traoré¹  Alassane Dicko¹  Bouran Sidibé¹  Susan M Abdel-Rahman² 

[1] Department of Public Health & Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Dentistry, University of Bamako, P.O. Box 1805, Bamako, Mali;Division of Clinical Pharmacology and Medical Toxicology, Children’s Mercy Hospital, 2401 Gillham Rd., Suite 041, 64108, Kansas, MO, USA;

关键词: Root Mean Square Error;    Weight Estimation;    Actual Weight;    Average Absolute Error;    Body Mass Index Percentile;   

DOI  :  10.1186/1471-2458-14-270

 received in 2014-01-01, accepted in 2014-03-14,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundThis study evaluated the performance of a new weight estimation strategy (Mercy Method) with four existing weight-estimation methods (APLS, ARC, Broselow, and Nelson) in children from Ouelessebougou, Mali.MethodsOtherwise healthy children, 2 mos to 16 yrs, were enrolled and weight, height, humeral length (HL) and mid-upper arm circumference (MUAC) obtained by trained raters. Weight estimation was performed as described for each method. Predicted weights were regressed against actual weights. Agreement between estimated and actual weight was determined using Bland-Altman plots with log-transformation. Predictive performance of each method was assessed using residual error (RE), percentage error (PE), root mean square error (RMSE), and percent predicted within 10, 20 and 30% of actual weight.Results473 children (8.1 ± 4.8 yr, 25.1 ± 14.5 kg, 120.9 ± 29.5 cm) participated in this study. The Mercy Method (MM) offered the best correlation between actual and estimated weight when compared with the other methods (r2 = 0.97 vs. 0.80-0.94). The MM also demonstrated the lowest ME (0.06 vs. 0.92-4.1 kg), MPE (1.6 vs. 7.8-19.8%) and RMSE (2.6 vs. 3.0-6.7). Finally, the MM estimated weight within 20% of actual for nearly all children (97%) as opposed to the other methods for which these values ranged from 50-69%.ConclusionsThe MM performed extremely well in Malian children with performance characteristics comparable to those observed for U.S and India and could be used in sub-Saharan African children without modification extending the utility of this weight estimation strategy.

【 授权许可】

CC BY   
© Dicko et al.; licensee BioMed Central Ltd. 2014