PLOD1 and obesity due to melanocortin 4 receptor deficiency: Patients were divided into four groups according to their HGS and obesity: NH-NO (normal HGS and non-obesity, n = 60), NH-O (normal HGS and obesity, n = 31), LH-NO (low HGS and non-obesity, n = 71), and LH-O (low HGS and obesity, n = 37).