Walton S M
Aust N Z J Obstet Gynaecol. 1981 May;21(2):82-4. doi: 10.1111/j.1479-828x.1981.tb00784.x.
Biparietal diameters (BPD) were determined by ultrasonography on 86 Caucasians and 107 Polynesians at different gestations. Analysis of variance showed a highly significant (p less than 0.01) difference between groups. At any gestational age, Polynesian fetuses had BPDs 1.89 mm greater than Caucasian fetuses and this fact must be taken into consideration when a single measured value of BPD is being used in the estimation of gestational age. In areas where the obstetrical population comprises different ethnic groups, there is a need for establishing local reference tables by race.
通过超声检查测定了86名白种人和107名波利尼西亚人在不同孕期的双顶径（BPD）。方差分析显示两组之间存在高度显著差异（p小于0.01）。在任何孕周，波利尼西亚胎儿的双顶径比白种人胎儿大1.89毫米，当使用双顶径的单一测量值来估计孕周时，这一事实必须予以考虑。在产科人群由不同种族组成的地区，有必要按种族建立当地的参考表。
