Predictive performance was explored using area under the receiver operating characteristic curve, net reclassification index (NRI), and integrated discrimination improvement (IDI).<h4>Results</h4>No significant differences were observed in lncRNA H19 (<i>Z</i> =  - 0.344, <i>P</i> = 0.731), miR-675 (<i>Z</i> =  - 1.376, <i>P</i> = 0.169), or <i>PPARα</i> protein levels (<i>Z</i> < 0, <i>P</i> = 0.999) between macrosomia and control groups. Here, H19 is linked to Large for gestational age.