Why the study?
Are shortened and prolonged QT-interval durations associated with increased mortality risk in the general population?
Are shortened and prolonged QT-interval durations associated with increased mortality risk in the general population?
Both shortened and prolonged QT intervals, even within normal limits, may serve as markers for increased mortality risk in the general population.
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QT extremes within normal range may flag higher mortality risk; leaves open incremental value for risk stratification.
Shortened and prolonged QT-interval durations, even within a reference range, are associated with increased mortality risk in the general population.
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Yiyi Zhang (2011) studied this question.
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