MBL2 and hyperinsulinemic hypoglycemia, familial, 4: Although the frequency of MBL2 gene HYA, LYA, LXA, HYD, LYD, LYB or LYC haplotypes did not differ significantly between the groups (Supplementary Tables 3 and 4), MBL deficiency-associated genotypes (LXA/O, O/O) were more common in patients suffering from AML than in controls when analysed with the χ2 test (p = 0.026, OR = 1.9, 95% CI (1.07–3.43).