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Pediatr Cardiol. 1996 May-Jun;17(3):135-6.

Effects of gender, age, and heart rate on QT intervals in children.

Author information

1
Division of Pediatric Cardiology, University of Texas Medical Branch, Children's Hospital, 301 University Boulevard, Galveston, TX 77555-0367, USA.

Abstract

The objective of this study was to determine if gender, age, and heart rate affect corrected QT intervals in children. Electrocardiograms were obtained from 781 healthy children 10-18 years of age. Corrected QT intervals were significantly (p < 0.0005) greater for girls than for boys in the entire population and for each age group over 14 years. The corrected QT interval varied inversely with age and directly with heart rate. Hence gender, age, and heart rate should be considered when diagnosing long QT syndrome.

PMID:
8662028
DOI:
10.1007/BF02505201
[Indexed for MEDLINE]

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