母体体重指数：诊断胎儿生长异常的一项较差检测方法。

Maternal body mass index: a poor diagnostic test for detection of abnormal fetal growths.

机构信息

Eastern Virginia Medical School, Norfolk, Virginia, USA.

出版信息

Am J Perinatol. 2011 Dec;28(10):773-80. doi: 10.1055/s-0031-1280859. Epub 2011 Jun 21.

Abstract

We sought to determine if maternal body mass index (BMI; kg/m (2)) identifies newborns with abnormal fetal growth (small for gestational age [SGA], large for gestational age [LGA], or macrosomia) at ≥37 weeks. Singletons with reliable gestational age and without diabetes or hypertension were analyzed. Areas under the receiver-operating characteristic (AUC) curves were calculated for BMI (first visit, delivery, and the change during pregnancy) to identify abnormal growth. If the AUC was ≤0.75 then the diagnostic test was not useful. Among 3582 cohorts, SGA occurred in 10%, LGA in 9%, and 11% were macrosomic. AUC indicates that BMI at delivery is significantly better than BMI at first visit for identification of aberrant growth, but their AUCs were less than 0.75, indicating it is not a useful diagnostic test. Maternal BMIs (at first visit, delivery, or the change during pregnancy) are poor predictors of abnormal fetal growth.

摘要

我们旨在确定母体体重指数（BMI；kg/m(2)）是否能在≥37 孕周时识别出胎儿生长异常（小于胎龄儿[SGA]、大于胎龄儿[LGA]或巨大儿）的新生儿。分析了具有可靠孕龄且无糖尿病或高血压的单胎妊娠。计算了 BMI（初诊、分娩和孕期变化）的受试者工作特征（ROC）曲线下面积（AUC），以识别生长异常。如果 AUC≤0.75，则诊断试验无意义。在 3582 个队列中，SGA 发生率为 10%，LGA 发生率为 9%，11%为巨大儿。AUC 表明，分娩时的 BMI 明显优于初诊时的 BMI，可用于识别生长异常，但 AUC 均小于 0.75，表明其不是有用的诊断试验。母体 BMI（初诊、分娩或孕期变化）是预测胎儿生长异常的不良指标。