Resting heart rate >79 bpm was associated with a 74% increased risk of total mortality compared to <62 bpm in the elderly (HR 1.74; 95% CI 1.3-2.3), but was not predictive of incident CHD.
Cohort (n=7,147)
Yes
Does a higher resting heart rate increase the risk of mortality and incident coronary heart disease in community-dwelling elderly subjects?
Resting heart rate >79 bpm is an independent risk marker for total mortality, but not incident coronary heart disease, in community-dwelling elderly individuals.
Effect estimate: HR 1.74 (95% CI 1.3-2.3)
OBJECTIVES: To investigate the association between resting heart rate (RHR) and mortality and incident coronary heart disease (CHD) in the elderly. METHODS: Data derived from the Three-City Study, a French multicentre prospective study including 9294 community-dwelling elderly subjects aged ≥65 years at baseline examination between 1999 and 2001. The study population comprised 7147 participants (61% women) who were free of a pacemaker or any cardiac arrhythmias at baseline. RHR was measured twice at baseline in a seated position using an electronic tensiometer. Participants were then followed up bi-annually for vascular morbidity and mortality over 6 years. CHD events and cardiovascular death were adjudicated by an independent expert committee. RESULTS: After 6 years of follow-up, 615 subjects died including 17.9% from cardiovascular causes. Subjects from the top quintile of RHR (>79 bpm) had respectively a 74% (95% CI, 1.3-2.3), a 87% (95% CI: 0.98-3.6, p = 0.06) and a 72% (95% CI, 1.3-2.3) increased risk of total, cardiovascular and non-cardiovascular mortality compared to those from the lowest quintile (0.10). Conversely, RHR was not predictive of incident CHD (n = 228 events; top vs lowest quintile: HR: 1.0; 95% CI: 0.6-1.5). CONCLUSIONS: RHR is an independent risk marker of mortality but not of incident CHD events in community-dwelling elderly. Its routine measurement may help identify those who are at increased risk of mortality in the short term.
Legeai et al. (Fri,) conducted a cohort in Community-dwelling elderly (n=7,147). Resting heart rate >79 bpm (top quintile) vs. Resting heart rate <62 bpm (lowest quintile) was evaluated on Total mortality (HR 1.74, 95% CI 1.3-2.3). Resting heart rate >79 bpm was associated with a 74% increased risk of total mortality compared to <62 bpm in the elderly (HR 1.74; 95% CI 1.3-2.3), but was not predictive of incident CHD.