Elevated Resting Heart Rate in Childhood Linked to Early Mortality

Bríain ó Hartaigh, Ph.D. Assistant Research Professor of Epidemiology Dalio Institute of Cardiovascular Imaging NewYork-Presbyterian Hospital and the Weill Cornell Medical College Belfer Research Building New York, NY 10021MedicalResearch.com Interview with:
Bríain ó Hartaigh, Ph.D.
Assistant Research Professor of Epidemiology
Dalio Institute of Cardiovascular Imaging
NewYork-Presbyterian Hospital and the Weill Cornell Medical College
Belfer Research Building New York, NY 10021

MedicalResearch: What are the main findings of the study

Dr. Hartaigh: Elevated resting heart rate (RHR) during childhood and midlife are associated with an increased risk of all-cause mortality.

MedicalResearch: Were any of the findings unexpected?

Dr. Hartaigh: Interestingly, only a higher resting heart rate at age 11, but not at ages 6 or 7, was associated with mortality, and there was little attenuation in this association after adjusting for numerous potential confounders.

MedicalResearch: What should clinicians and patients take away from your report?

Dr. Hartaigh: While the positive relationship between elevated resting heart rate and the risk of dying has been well documented in adults, the role of resting heart rate as a distinct marker of health status in childhood remains relatively unclear. The current findings suggest that a rapid resting heart rate found during childhood could track into adulthood and act independently towards influencing cardiovascular risk later in life.

MedicalResearch: What recommendations do you have for future research as a result of this study?

Dr. Hartaigh: We encourage forthcoming studies to explore the potential role of childhood resting heart rate for later mortality risk and the disease processes through which it operates.

Citation:

Association between resting heart rate across the life course and all-cause mortality: longitudinal findings from the Medical Research Council (MRC) National Survey of Health and Development (NSHD)

Bríain Ó Hartaigh, Thomas M Gill, Imran Shah, Alun D Hughes, John E Deanfield, Diana Kuh, Rebecca Hardy

J Epidemiol Community Health jech-2014-203940Published Online First: 21 May 2014 doi:10.1136/jech-2014-203940

Last Updated on May 25, 2014 by Marie Benz MD FAAD