![]() ![]() Standard pediatric height boards were used. ![]() usually vests / underpants) without shoes using 25 kilogram × 100 gram hanging scales (Salter-Brecknell 235-6S series or similar). Children were weighed in minimal clothing (i.e. Single measurements were used and performed always by teams of three people. Weight, height, and MUAC measurements were subject to standardization using the method of Habicht. Sampling within each cluster stopped when a fixed sample size (usually n ≈ 30) had been met or exceeded. children aged 6 to 59 months inclusive) in sampled households were measured. A single household was selected at random and subsequent households were selected by their proximity to the first household. Samples within primary sampling units were taken using the Expanded Program of Immunization proximity sampling method. The mean overall survey sample size was n = 811 children meeting study eligibility criteria. A minimum of m = 30 primary sampling units were always selected. villages, townships, census enumeration areas) using population proportional sampling. Primary sampling units or “clusters” were selected from exhaustive lists of potential primary sampling units (e.g. A modified Expanded Program of Immunization two-stage cluster survey design was used. Survey agencies used a “30-by-30” method until 2006 when it was replaced by SMART methodology (which places greater emphasis on standardization and data quality) with one exception: United Nations High Commissioner for Refugees used SENS methodology, which for anthropometry is identical to SMART. The data collection methodology was consistent across the 2,434 surveys. This study recalibrated and tested the accuracy and precision of this tool with a fourfold increase in nutritional survey data during 1992–2017 across a wider range of low-to-middle income countries. length-based Broselow Tape and MUAC-based Hong Kong formula). Ī weight estimation tool developed from a nutritional survey database of 453,990 children aged 6 to 59 months of age in low-to-middle income countries during 1992–2006 and based on both length and MUAC was found to be more accurate and more precise than existing weight estimation methods (i.e. based on either length or habitus alone) in predicting total body weight. ![]() based on patient length with adjustment for body habitus) have been found to be more accurate than one-dimensional methods (i.e. Two-dimensional weight estimation methods (i.e. Furthermore, as severe acute malnutrition is a significant contributor in approximately one-third of under-five mortality, a tool which accurately estimates total (or actual) body weight instead of ideal body weight would be preferable in order to avoid overestimation of weight in the undernourished child. The ideal tool should be simple as well as validated in low-to-middle income countries. Permission to access UNHCR datasets can be requested from the Chief of Public Health Section at UNHCR, Ann Burton ( who will provide a decryption key to access the data in surveyDB1.zip.įunding: The author(s) received no specific funding for this work.Ĭompeting interests: The authors have declared that no competing interests exist.Īn anthropometric tool for estimation of weight in children would be useful in limited-resource settings where nearly all under-five mortality occurs yet a weight scale may not be immediately available to healthcare professionals including first-response providers. UNHCR allow access to the data, however permission must be requested as they require users to sign an agreement specifying how UNHCR are credited and that a standard disclaimer is used in the acknowledgements. Other data (found in surveyDB1.zip) is third party data owned by the United Nations High Commissioner for Refugees (UNHCR). The work is made available under the Creative Commons CC0 public domain dedication.ĭata Availability: All data have been uploaded to Figshare ( ) the dataset surveyDB2.zip may be accessed without restriction. This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. Received: NovemAccepted: Published: June 7, 2018 Citation: Ralston ME, Myatt MA (2018) Weight estimation for children aged 6 to 59 months in limited-resource settings: A proposal for a tape using height and mid-upper arm circumference. ![]()
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