Kelly Anne-Maree, Kerr Debra, Clooney Megan, Krieser David, Nguyen Kevin
Joseph Epstein Centre for Emergency Medicine Research, Victoria, Australia.
Emerg Med Australas. 2007 Dec;19(6):543-6. doi: 10.1111/j.1742-6723.2007.01025.x.
A new method for estimation of weight in children based on their age has been proposed. The present study aims to validate the Best Guess formulae in a new population of children.
This was a secondary analysis of a database collected for a prospective, observational, cohort study conducted in the Paediatric ED of Sunshine Hospital. Children aged 1-11 years who presented to the ED between 18 August 2005 and 25 February 2006 were included. Actual weight, height, age and ethnicity were obtained. Agreement between estimated weight using the Best Guess formulae and measured weight is reported using mean bias, 95% limits of agreement and proportion within 20% of actual weight.
A total of 410 cases were included in the present study. Forty-six per cent were female and median age was 4 years. The mean bias in the 1-5 year group was 0.9 kg, with 95% limits of agreement -3.5 to +5.3 kg. Seventy-six per cent of estimations were within 20% of measured weight. The mean bias in the 5-11 year group was 0.4 kg, with 95% limits of agreement -14.4 to +15.2 kg. In this group, 64% of estimations were within 20% of measured weight.
The Best Guess formulae performed moderately well in estimating children's weight, but had a tendency to overestimate weight, particularly in children with lower body mass index.
已提出一种基于儿童年龄估算体重的新方法。本研究旨在在新的儿童群体中验证“最佳猜测”公式。
这是对为在阳光医院儿科急诊科进行的一项前瞻性观察队列研究收集的数据库进行的二次分析。纳入了2005年8月18日至2006年2月25日期间到急诊科就诊的1至11岁儿童。获取了实际体重、身高、年龄和种族信息。使用平均偏差、95%一致性界限以及在实际体重的20%范围内的比例来报告使用“最佳猜测”公式估算的体重与测量体重之间的一致性。
本研究共纳入410例病例。46%为女性，中位年龄为4岁。1至5岁组的平均偏差为0.9千克，95%一致性界限为-3.5至+5.3千克。76%的估算值在测量体重的20%范围内。5至11岁组的平均偏差为0.4千克，95%一致性界限为-14.4至+15.2千克。在该组中，64%的估算值在测量体重的20%范围内。
“最佳猜测”公式在估算儿童体重方面表现中等，但有高估体重的趋势，尤其是在体重指数较低的儿童中。
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