Frailty is common and associated with poorer outcomes in the elderly, but
its role as potential cardiovascular disease (CVD) risk factor requires
clarification. We thus aimed to meta-analytically evaluate the evidence of
frailty and pre-frailty as risk factors for CVD. Two reviewers selected all
studies comparing data about CVD prevalence or incidence rates between
frail/pre-frail vs. robust. The association between frailty status and CVD in
cross-sectional studies was explored by calculating and pooling crude and
adjusted odds ratios (ORs) ±95% confidence intervals (CIs); the
data from longitudinal studies were pooled using the adjusted hazard ratios
(HRs). Eighteen cohorts with a total of 31,343 participants were meta-analyzed.
Using estimates from 10 cross-sectional cohorts, both frailty and pre-frailty
were associated with higher odds of CVD than robust participants. Longitudinal
data were obtained from 6 prospective cohort studies. After a median follow-up
of 4.4 years, we identified an increased risk for faster onset of any-type CVD
in the frail (HR=1.70 [95%CI, 1.18–2.45];
I2=66%) and pre-frail (HR=1.23 [95%CI,
1.07–1.36]; I2=67%) vs. robust groups. Similar
results were apparent for time to CVD mortality in the frail and pre-frail
groups. In conclusion, frailty and pre-frailty constitute addressable and
independent risk factors for CVD in older adults.