Why the study?
Is increased QT dispersion and QT maximum associated with an increased risk of cardiac death in men?
Population
422 men from the Caerphilly prospective cohort study phase 1
Comparison
Upper quartile of corrected QT dispersion and… vs Lower quartiles of corrected QT dispersion and…
Design
Case-control
Follow-up
mean 7.1 years
Authors
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QT dispersion may aid cardiac risk assessment in men; leaves open its incremental value beyond standard predictors in prospective cohorts.
Is increased QT dispersion and QT maximum associated with an increased risk of cardiac death in men?
Increased QT dispersion, but not QT maximum, is an independent predictor of cardiac death in men when measured reliably.
Sheehan et al. (2004) studied this question.
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