Abstract

The relationship between KCNE1 G38S genetic polymorphism and non-valvular atrial fibrillation is different among different populations. The study explored the KCNE1 G38S to understand if the KCNE1 G38S is associated with the Uygur atrial fibrillation patients. KCNE1 G38S genetic polymorphism was determined between 237 non-valvular atrial fibrillation cases and 237 control subjects using PCR-RFLP. In univariate analyses, there was a statistical difference in genotype distribution between the patients and controls, and a significant difference in allele frequency of KCNE1 G38S was observed between the two groups (62.6 vs 52.7 %, p = 0.003). In multivariate analyses, the KCNE1 38G variant was independently associated with a significant predisposing effect on AF after adjusting for related risk factors, and the odds ratio for patients was 1.634 (95 % CI: 1.192-2.240, p = 0.002). The KCNE1 38G is a risk factor for incident AF in an Uygur population. The KCNE1 G38S might have different impact on AF in different ethnicities.

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