Wikström I, Bergström R, Bakketeig L, Jacobsen G, Lindmark G
Department of Obstetrics and Gynecology, Uppsala University, Sweden.
Gynecol Obstet Invest. 1993;35(1):27-33. doi: 10.1159/000292658.
The possibility to predict a large infant during pregnancy was assessed using data from a prospective cohort study of 537 singleton pregnancies with term deliveries. Maternal characteristics, symphysis fundal height and ultrasound measurements were used in multivariate analyses for the prediction of an infant with a birthweight of > or = 4,500 or > or = 4,000 g. The positive predictive value was 55% for a birthweight > or = 4,000 g when only maternal characteristics were used, and increased slightly when symphysis fundal height was added. The corresponding value for a single ultrasound measurement at 37 gestational weeks was 52%. Using all available clinical data, positive predictive values of 45 and 80% could be achieved for birthweights of > or = 4,500 and > or = 4,000 g, respectively.
利用一项对537例足月分娩的单胎妊娠进行的前瞻性队列研究数据，评估孕期预测巨大儿的可能性。在多变量分析中，使用产妇特征、耻骨联合上缘高度和超声测量值来预测出生体重≥4500克或≥4000克的婴儿。仅使用产妇特征时，预测出生体重≥4000克的阳性预测值为55%，加入耻骨联合上缘高度后略有增加。孕37周时单次超声测量的相应值为52%。使用所有可用临床数据时，出生体重≥4500克和≥4000克的阳性预测值分别可达45%和80%。
