In the DM group, a weak association was found between AHI and log MAGE among patients with BNP< 100 pg/ml (DM low-BNP subgroup: r = 0.26, p<0.05, Fig 2A) but not among patients with BNP≥100 pg/ml (Fig 2B). The gene discussed is NPPB; the disease is diabetes mellitus.