Pattinson R C
MRC Perinatal Mortality Research Unit, Department of Obstetrics and Gynaecology, University of Stellenbosch.
S Afr Med J. 1988 Sep 17;74(6):282-3.
By using symphysis-fundus measurements serially and plotting them on a curve, small-for-gestational-age babies can be detected. To determine which symphysis-fundus curve to choose for our population, the predictive values of three of the commonly used of these growth curves were compared using serial measurements obtained from 97 low-risk obstetric patients with accurate gestational ages. The curves of Calvert and Quaranta had the best sensitivities of 92.9% each compared with Belizan's (85.7%). However, the specificity of Calvert's and Quaranta's curves were poorer being 74.7% and 50.6% compared with 89.2% for Belizan. The positive predictive value for the curves were Belizan 57.1%, Calvert 38.2% and Quaranta 24.1%. The results indicate that for a Third-World urban population Belizan's curve is most suitable.
通过连续测量耻骨联合上缘至宫底高度并绘制曲线，可以检测出小于胎龄儿。为了确定适合我们人群的耻骨联合上缘至宫底高度曲线，我们使用从97例孕周准确的低风险产科患者获得的连续测量数据，比较了这些生长曲线中常用的三条曲线的预测价值。与贝利赞曲线（85.7%）相比，卡尔弗特曲线和夸兰塔曲线的敏感性最高，均为92.9%。然而，卡尔弗特曲线和夸兰塔曲线的特异性较差，分别为74.7%和50.6%，而贝利赞曲线为89.2%。这些曲线的阳性预测值分别为：贝利赞曲线57.1%，卡尔弗特曲线38.2%，夸兰塔曲线24.1%。结果表明，对于第三世界城市人口，贝利赞曲线最为合适。
