A. Benetos et al., Influence of heart rate on mortality in a French population - Role of age,gender, and blood pressure, HYPERTENSIO, 33(1), 1999, pp. 44-52
Citations number
20
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
The aim of the present study was to assess the effects of high heart rate o
n mortality in different subgroups in a French population according to age,
gender, and blood pressure levels. We studied 19 386 subjects (12 123 men,
7263 women), aged 40 to 69 years, who had a routine health examination at
the Centre d'Investigations Preventives et Cliniques (IPC) between 1974 and
1977. Heart rate (HR) measured by ECG was classified into 4 groups: HR1, <
60; HR2, 60 to 80; HR3, 81 to 100; and HR4, >100 bpm. Mortality data were r
ecorded for the period of 1974 through 1994. In both sexes, HR was a signif
icant predictor of noncardiovascular mortality. In men, the relative risk (
95% confidence interval) for cardiovascular death after adjustment for age
and other risk factors in the HR2, HR3, and HR4 groups was 1.35 (1.01 to 1.
80), 1.44 (1.04 to 2.00), and 2.18 (1.37 to 3.47), respectively, when compa
red with HR1. In women, HR did not influence cardiovascular mortality. The
association of HR with cardiovascular mortality in men was (1) related to a
strong association with coronary but not cerebrovascular mortality, (2) in
dependent of age and hypertension, and (3) influenced by the level of pulse
pressure; in patients with high pulse pressure (>65 mm Hg), accelerated HR
was not associated with increased cardiovascular mortality. In conclusion,
in a large French population, accelerated resting HR represents an indepen
dent predictor of noncardiovascular mortality in both genders, and of cardi
ovascular mortality in men, independent of age and the presence of hyperten
sion. Further investigations are needed to explain the complex interactions
between HR, pulse pressure, and cardiovascular complications.