CYP11B2 and atrial fibrillation: In the current meta-analysis, a significant relationship was found between CYP11B2 T-344C gene polymorphism and increased AF risk under the allelic (OR: 1.26), recessive (OR: 1.99), dominant (OR: 0.903), homozygous (OR: 1.356), and additive (OR: 1.153) genetic models.