Fig. 4.

The percentage of fetuses whose birthweight is predicted within a given error rate, according to 11 methods. Here, LR=our linear regression formula, IG=INTERGROWTH, HD=Hadlock, SHD=Shepard, Gomp24 =Gompertz prediction of final biometry using ultrasound data up until 24 weeks, Gomp35 =Gompertz prediction of final biometry using ultrasound data up until 35 weeks. So, for LR_Gomp35 and IG_Gomp35, the Gompertz-predicted final biometry were used in our linear regression model and in the INTERGROWTH formula respectively. For IG_IG, HD_IG, SHD_IG, the INTERGROWTH optimal fetal biometry at birth were used for prediction.