Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases

ABSTRACT The corrected QT (QTc) interval is a critical marker for assessing proarrhythmic potential in drug development, while the corrected JT (JTc) interval provides specific insight into ventricular repolarization. This study quantitatively analyzed the relationships of QTc and JTc intervals with...

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Main Authors: Eunwoo Kim, Hyun Young Lee, Young‐Min Ye, Anhye Kim
Format: Article
Language:English
Published: Wiley 2025-06-01
Series:Clinical and Translational Science
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Online Access:https://doi.org/10.1111/cts.70263
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author Eunwoo Kim
Hyun Young Lee
Young‐Min Ye
Anhye Kim
author_facet Eunwoo Kim
Hyun Young Lee
Young‐Min Ye
Anhye Kim
author_sort Eunwoo Kim
collection DOAJ
description ABSTRACT The corrected QT (QTc) interval is a critical marker for assessing proarrhythmic potential in drug development, while the corrected JT (JTc) interval provides specific insight into ventricular repolarization. This study quantitatively analyzed the relationships of QTc and JTc intervals with age and sex utilizing a large real‐world dataset of hospital‐based controls and moxifloxacin‐treated patients. This retrospective study analyzed 1,039,550 electrocardiograms and associated clinical data extracted from a previously constructed electrocardiogram database, categorizing cases as hospital‐based controls (n = 119,882) or moxifloxacin‐treated (n = 1586) based on predefined criteria. We observed a general trend of QTc and JTc interval prolongation with age in both groups, with moxifloxacin‐treated cases showing longer QTc and JTc intervals than hospital‐based controls. Multiple linear regression analysis indicated that in hospital‐based controls, QTc and JTc intervals increased with age, with males exhibiting shorter intervals than females. Meanwhile, in moxifloxacin‐treated cases, QTc and JTc intervals showed similar age‐dependent increases, although no significant sex differences were observed in the QTc interval. Therefore, this study quantified the effects of age and sex on QTc and JTc intervals in hospital‐based controls and highlighted similar age‐related trends in moxifloxacin‐treated cases, underscoring the relevance of age and sex as key factors in interpreting QTc and JTc intervals across diverse clinical contexts.
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spelling doaj-art-efc7400911b44360a3fee39f71f144e42025-08-20T03:29:52ZengWileyClinical and Translational Science1752-80541752-80622025-06-01186n/an/a10.1111/cts.70263Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated CasesEunwoo Kim0Hyun Young Lee1Young‐Min Ye2Anhye Kim3Department of Clinical Pharmacology & Therapeutics, CHA University Bundang Medical Center Seongnam‐si Republic of KoreaClinical Trial Center Ajou University Hospital Suwon Republic of KoreaDepartment of Allergy and Clinical Immunology Ajou University School of Medicine Suwon Republic of KoreaDepartment of Clinical Pharmacology & Therapeutics, CHA University Bundang Medical Center Seongnam‐si Republic of KoreaABSTRACT The corrected QT (QTc) interval is a critical marker for assessing proarrhythmic potential in drug development, while the corrected JT (JTc) interval provides specific insight into ventricular repolarization. This study quantitatively analyzed the relationships of QTc and JTc intervals with age and sex utilizing a large real‐world dataset of hospital‐based controls and moxifloxacin‐treated patients. This retrospective study analyzed 1,039,550 electrocardiograms and associated clinical data extracted from a previously constructed electrocardiogram database, categorizing cases as hospital‐based controls (n = 119,882) or moxifloxacin‐treated (n = 1586) based on predefined criteria. We observed a general trend of QTc and JTc interval prolongation with age in both groups, with moxifloxacin‐treated cases showing longer QTc and JTc intervals than hospital‐based controls. Multiple linear regression analysis indicated that in hospital‐based controls, QTc and JTc intervals increased with age, with males exhibiting shorter intervals than females. Meanwhile, in moxifloxacin‐treated cases, QTc and JTc intervals showed similar age‐dependent increases, although no significant sex differences were observed in the QTc interval. Therefore, this study quantified the effects of age and sex on QTc and JTc intervals in hospital‐based controls and highlighted similar age‐related trends in moxifloxacin‐treated cases, underscoring the relevance of age and sex as key factors in interpreting QTc and JTc intervals across diverse clinical contexts.https://doi.org/10.1111/cts.70263age effectelectrocardiogramJTc intervalmoxifloxacinQTc interval
spellingShingle Eunwoo Kim
Hyun Young Lee
Young‐Min Ye
Anhye Kim
Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
Clinical and Translational Science
age effect
electrocardiogram
JTc interval
moxifloxacin
QTc interval
title Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
title_full Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
title_fullStr Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
title_full_unstemmed Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
title_short Large‐Scale Analysis of Age and Sex Effects on Corrected QT and JT Intervals: Insights From Hospital‐Based Controls and Moxifloxacin‐Treated Cases
title_sort large scale analysis of age and sex effects on corrected qt and jt intervals insights from hospital based controls and moxifloxacin treated cases
topic age effect
electrocardiogram
JTc interval
moxifloxacin
QTc interval
url https://doi.org/10.1111/cts.70263
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