Fig. 2.

Using the EPIC GA clock to predict gestational age. Panel a shows the scatter plot of predicted gestational age against gestational age estimated by ultrasound in the training set (n = 755). Panel b shows the corresponding predicted gestational age in the test set (n = 200). The red line indicates a perfect correlation between DNAm-based gestational age and ultrasound-based gestational age. The black line indicates the MM-type robust regression of ultrasound-based gestational age on DNAm-based gestational age