Why the study?
What is the prevalence of Long QT syndrome and associated gene mutations in a general population of Japanese children?
Population
7961 Japanese school children (4044 males; mean age, 9.9+/-3.0 years)
Design
Cross-sectional
Authors
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Provides baseline LQTS prevalence data in Japanese children; leaves open generalizability and need for outcome validation.
What is the prevalence of Long QT syndrome and associated gene mutations in a general population of Japanese children?
ECG screening in Japanese school children identified a 0.038% prevalence of high-probability LQTS and associated gene mutations.
Hayashi et al. (2009) studied this question.
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