Key result
Low beta-carotene linked to ~98% higher MI risk, especially at high PUFA levels.
Why the study?
The combined association of diet-derived antioxidants and polyunsaturated fatty acids with acute myocardial infarction was unclear.
Does the association between diet-derived antioxidants and acute myocardial infarction depend on polyunsaturated fatty acid (PUFA) status?
Population
674 patients with acute MI and 725 control subjects in eight European countries and Israel
Comparison
Low versus high levels of beta-carotene, alpha-tocopherol, and selenium
Design
Multicenter case-control study
Authors
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Beta-carotene's MI association may strengthen with higher PUFA intake; leaves open whether targeted antioxidant strategies merit prospective trials.
Case-Control (n=1,399)
Yes
Does the association between diet-derived antioxidants and acute myocardial infarction depend on polyunsaturated fatty acid (PUFA) status?
Odds Ratio: 1.98 (95% CI 1.39–2.82)
Low beta-carotene levels are associated with an increased risk of acute myocardial infarction, particularly in individuals with high polyunsaturated fatty acid levels.
Kardinaal et al. (1995) conducted a case-control in Acute myocardial infarction (n=1,399). Low beta-carotene levels vs. High beta-carotene levels was evaluated on Acute myocardial infarction (OR 1.98, 95% CI 1.39 to 2.82). Low beta-carotene levels were associated with an increased risk of acute myocardial infarction compared to high levels (OR 1.98; 95% CI 1.39-2.82), with the strongest association at high PUFA levels.
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