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Dietary Linoleic Acid and Risk of Coronary Heart Disease: A Systematic Review and Meta-Analysis of Prospective Cohort Studies

Published on Oct 28, 2014in Circulation23.054
· DOI :10.1161/CIRCULATIONAHA.114.010236
Maryam Sadat Farvid2
Estimated H-index: 2
(Shahid Beheshti University of Medical Sciences and Health Services),
Ming Ding12
Estimated H-index: 12
(Harvard University)
+ 5 AuthorsFrank B. Hu205
Estimated H-index: 205
(Harvard University)
Abstract
Background—Previous studies on intake of linoleic acid (LA), the predominant n-6 fatty acid, and coronary heart disease (CHD) risk have generated inconsistent results. We performed a systematic review and meta-analysis of prospective cohort studies to summarize the evidence regarding the relation of dietary LA intake and CHD risk. Methods and Results—We searched MEDLINE and EMBASE databases through June 2013 for prospective cohort studies that reported the association between dietary LA and CHD events. In addition, we used unpublished data from cohort studies in a previous pooling project. We pooled the multivariate-adjusted relative risk (RR) to compare the highest with the lowest categories of LA intake using fixed-effect meta-analysis. We identified 13 published and unpublished cohort studies with a total of 310 602 individuals and 12 479 total CHD events, including 5882 CHD deaths. When the highest category was compared with the lowest category, dietary LA was associated with a 15% lower risk of CHD e...
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