Does COVID-19 impact the QT interval prolongation? Answers from genetic causal inference.

Notably, in contrast with the null causal estimates observed in the UVMR analysis, the BMI-adjusted hospitalized and severe phenotypes exhibited a nominally significant shortening of the QT interval [hospitalization: β BMI (95% CI): −0.45 (−0.82, 0.08), P =0.02; severe case: β BMI : −0.32 (−0.60,–0.03), P =0.03] ( Figure 4 ).

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