ABCG1 and metabolic syndrome: The MR analysis identified 2 putative causal CpGs, cg01881899 at ABCG1 and cg00021659 at TANK, from meQTL-CpG pairs for MetS with multiple testing correction (PMR < 0.05/13, Table 3), and there was no evidence of heterogeneity among the genetic instruments (p for Q-statistics).