Similarly with the genotypic MBL deficiency, the functional one was significantly associated with the development of respiratory morbidity (P = 0.001, P = 0.026, and P = 0.005, for MBL levels lower than 150 ng/mL, 400 ng/mL, or 700 ng/mL, resp). Here, MBL2 is linked to hyperinsulinemic hypoglycemia, familial, 4.