Key result
Short QT interval (QTc < 350 ms) was identified in only two of 19,153 subjects over a 45-year period, yielding a prevalence of 0.01% and an incidence of 0.39 per 100,000 person-years.
Why the study?
What is the incidence and prevalence of short QT interval in a general longitudinal cohort?
Population
19,153 subjects with available electrocardiograms investigated longitudinally from 1958 through 2003.
Design
Cohort
Follow-up
1958 through 2003
Authors
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Short QT interval remains rare in general populations; leaves open prospective assessment of associated arrhythmic risk.
Cohort (n=19,153)
What is the incidence and prevalence of short QT interval in a general longitudinal cohort?
Short QT interval (QTc < 350 ms) is extremely rare, with an estimated prevalence of 0.01% and incidence of 0.39/100,000 person-years in a large longitudinal cohort.
Moriya et al. (2007) conducted a cohort in Short QT interval (n=19,153). Short QT interval (QTc < 350 ms) was identified in only two of 19,153 subjects over a 45-year period, yielding a prevalence of 0.01% and an incidence of 0.39 per 100,000 person-years.
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