DuBois Dale, Baldwin Steven, King William D
Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL 35233, USA.
Pediatr Emerg Care. 2007 Apr;23(4):227-30. doi: 10.1097/PEC.0b013e31803f5aca.
To evaluate differences in accuracy of 2 weight estimation methods for children when compared with measured weights: the Broselow-Luten tape (patient's height as the predictor) and the devised weight estimation method (DWEM) (patient's height and body habitus as predictors).
Information was obtained prospectively on a convenience sample of patients presenting through triage on nonconsecutive days at the Children's Hospital Emergency Department. Weight was measured in kilograms, and a measured length or height in centimeters was obtained, as well as 2 independent assessments of body habitus. Weights were then estimated using the Broselow-Luten tape and the DWEM. This study evaluated 4 separate weight classes: less than or equal to 10 kg, 10.1 to 20 kg, 20.1 to 36 kg, and 36.1 kg or more. One hundred children were recruited into each weight class, for a total of 400 children. Comparisons of estimations with measured weights were made using the Pearson correlation coefficient method. Mean percentage errors were calculated for weight estimations by both methods.
Both the Broselow-Luten and DWEM weight estimations when compared with measured weights showed statistical correlation (using the Pearson correlation coefficient). However, the Broselow-Luten method had a negative mean percentage error in all weight classes, and the DWEM had a negative mean percentage error in classes greater than 20 kg, indicating an underestimation of weight in those classes.
Although both the Broselow-Luten and DWEM weight estimations show statistical correlation with measured weights, the Broselow-Luten method underestimates weights in all weight classes, and the DWEM underestimates weights in the weight classes greater than 20 kg.
与实测体重相比，评估两种儿童体重估计方法的准确性差异：布罗泽洛-卢滕卷尺法（以患者身高作为预测指标）和设计的体重估计方法（DWEM，以患者身高和体型作为预测指标）。
前瞻性收集儿童医院急诊科非连续日期经分诊的患者便利样本信息。体重以千克为单位进行测量，获取以厘米为单位的测量长度或身高，以及对体型的两项独立评估。然后使用布罗泽洛-卢滕卷尺法和DWEM估计体重。本研究评估了4个不同的体重类别：小于或等于10千克、10.1至20千克、20.1至36千克以及36.1千克或以上。每个体重类别招募100名儿童，共400名儿童。使用皮尔逊相关系数法将估计值与实测体重进行比较。计算两种方法体重估计的平均百分比误差。
与实测体重相比，布罗泽洛-卢滕法和DWEM体重估计均显示出统计学相关性（使用皮尔逊相关系数）。然而，布罗泽洛-卢滕法在所有体重类别中平均百分比误差均为负，而DWEM在大于20千克的类别中平均百分比误差为负，表明这些类别中体重被低估。
虽然布罗泽洛-卢滕法和DWEM体重估计与实测体重均显示出统计学相关性，但布罗泽洛-卢滕法在所有体重类别中均低估体重，而DWEM在大于20千克的体重类别中低估体重。
