Abstract
The association between antibodies against oxidized LDL (oxLDL) and cardiolipin and the risks of death and cardiovascular disease events were evaluated in patients with established coronary heart disease (CHD). The patients (mean age: 61 years, range: 33–74 years) were participants in the EUROASPIRE study; 108 of them had undergone coronary artery bypass surgery, 106 had balloon angioplasty, 101 had a diagnosis of acute myocardial infarction (AMI), and 98 acute myocardial ischemia. Antibodies against oxLDL and cardiolipin were measured and incidence of CHD events and deaths were followed up for 5 years in 284 men and 129 women. During the follow-up 36 patients died and 21 had AMI. After adjustment for cardiovascular disease risk factors the relative risks (RR [95% confidence interval]) of death were 1 (reference), 2.50 (0.97–6.49) and 2.21 (0.85–5.80) in increasing tertile categories of anti-oxLDL antibody titers, respectively ( P for trend 0.16). The risks of CHD-death or AMI combined were 1 (reference), 2.61 (1.02–6.65) and 1.06 (0.37–3.03) in increasing tertile categories of anticardiolipin antibody titers, respectively ( P for trend 0.03). In conclusion, the results suggest that antibodies against oxLDL and cardiolipin are not major predictors of risks of death and CHD events in patients with established CHD.
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