Mirghani Hisham M, Weerasinghe Sarath, Ezimokhai Mutaira, Smith John R
Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates.
J Obstet Gynaecol Res. 2005 Oct;31(5):409-13. doi: 10.1111/j.1447-0756.2005.00311.x.
To compare the accuracy of eight sonographic formulae for predicting fetal birth weight at term in a multiethnic population.
Pregnant women at term who were booked for induction of labor or elective cesarean section were included in the study. Eight ultrasonic fetal biometric formulae were used to predict fetal birth weight.
A total of 173 patients were included in the study; 53 (30.6%) patients were from the Indian subcontinent, 44 (25.4%) patients were from Africa, 33 (19.1%) patients were from the Arabian Peninsula and 43 (24.9%) were from other ethnic groups. The mean absolute error ranged from a minimum of 0.3% (+/-11.3) for Hadlock (biparietal diameter [BPD], head circumference [HC], abdominal circumference [AC], femur length [FL]) to a maximum of 37.5% (+/-10.0) for Warsof (FL). The correlation of estimated fetal weight with actual birth weight ranged from a minimum of 0.09 with Warsof (FL) to a maximum of 0.77 with Shepard and Warsof (BPD, AC) and Hadlock (BPD, HC, AC, FL). The combination of AC with BPD measurements rather than FL achieves a high level of accuracy.
Shepard (BPD, AC) provides a simple and accurate logarithm for the prediction of fetal weight at term in the studied multiethnic population.
比较八种超声公式在多民族人群中预测足月胎儿出生体重的准确性。
纳入计划引产或择期剖宫产的足月孕妇。使用八种超声胎儿生物测量公式预测胎儿出生体重。
本研究共纳入173例患者；53例（30.6%）患者来自印度次大陆，44例（25.4%）患者来自非洲，33例（19.1%）患者来自阿拉伯半岛，43例（24.9%）来自其他种族。平均绝对误差范围从Hadlock公式（双顶径[BPD]、头围[HC]、腹围[AC]、股骨长度[FL]）的最小值0.3%（±11.3）到Warsof公式（FL）的最大值37.5%（±10.0）。估计胎儿体重与实际出生体重的相关性范围从Warsof公式（FL）的最小值0.09到Shepard和Warsof公式（BPD、AC）以及Hadlock公式（BPD、HC、AC、FL）的最大值0.77。AC与BPD测量值相结合而非与FL相结合可实现较高的准确性。
在本研究的多民族人群中，Shepard公式（BPD、AC）为预测足月胎儿体重提供了一个简单且准确的对数公式。
