We also tested the association of rs2106261 at the ZFHX3 locus and rs2200733 at the PITX2 locus with AF, which was recently reported to be associated with AF in a meta-analysis of three Chinese samples (OR = 5.36, P = 8.0 × 10−24)23. This evidence concerns the gene PITX2 and atrial fibrillation.