使用特定性别的体重公式提高胎儿体重估计的准确性。
Increased accuracy of fetal weight estimation with a gender-specific weight formula.
作者信息
Siemer Jorn, Wolf Tanja, Hart Nicola, Schrauder Michael, Meurer Britta, Goecker Tamme, Beckmann Matthias W, Schild Ralf L
机构信息
Department of Obstetrics and Gynaecology, University Hospital, Mannheim, Germany.
出版信息
Fetal Diagn Ther. 2008;24(4):321-6. doi: 10.1159/000159777. Epub 2008 Oct 6.
OBJECTIVE
To test whether Schild's sex-specific formula for estimating fetal weight is more accurate than commonly used regression formulae.
METHODS
The gender-specific formula and 10 widely used equations were evaluated in a group of 989 pregnancies. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery.
RESULTS
Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. For infants with a birth weight of less than 2,500 g as well as for macrosomic newborns, the gender-specific formula did not improve fetal weight estimation.
CONCLUSION
In pregnancies where fetal gender is known, Schild's regression formula should be used when fetal weight lies within the range of 2,500-3,999 g.
目的
检验席尔德（Schild）用于估算胎儿体重的性别特异性公式是否比常用的回归公式更准确。
方法
在一组989例妊娠中对性别特异性公式和10个广泛使用的方程进行评估。每例胎儿在分娩前7天内接受超声检查并获得完整的生物测量参数。
结果
在整个体重范围内以及出生体重在2500至3999克之间的新生儿亚组中，席尔德的性别特异性体重公式显示出最佳的准确性水平。对于出生体重小于2500克的婴儿以及巨大儿，性别特异性公式并未改善胎儿体重估计。
结论
在已知胎儿性别的妊娠中，当胎儿体重在2500 - 3999克范围内时，应使用席尔德的回归公式。
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