Clinical and genetic relationships between the QTc interval and risk of a stroke among atrial fibrillation patients undergoing catheter ablation

Table 4 Two-sample Mendelian randomization estimates of the causal effect of QT interval on cardioembolic stroke

Method	Number of SNP	OR estimate	95% CI	p value	Cochran Q statistic	Heterogeneity p value
MR-Egger	24	0.996	0.97–1.02	0.726	13.91	0.905
Inverse variance weighted	24	0.996	0.98–1.01	0.555	13.92	0.929
Weighted median	24	0.996	0.98–1.01	0.694	NA	NA

CI, confidence interval; MR, Mendelian randomization; NA, not available; OR, odds ratio; SNP, single nucleotide polymorphism

ISSN: 2466-1171