NRG4 and diabetic kidney disease: The AUCs predicted for diabetic nephropathy were Nrg4 (0.91, 95%CI: 0.859, 0.961), HCY (0.885, 95%CI: 0.822, 0.948), and homocysteine/NRG4 (0.961, 95%CI: 0.928, 0.994), respectively [74].