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Eur J Prev Cardiol. 2014 May 9. [Epub ahead of print]

Non-fasting triglycerides predict incident acute myocardial infarction among those with favourable HDL-cholesterol: Cohort Norway.

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  • 1Division of Epidemiology, Norwegian Institute of Public Health, Bergen, Norway.

Abstract

AIMS:

to prospectively evaluate the risk of acute myocardial infarction (AMI) associated with non-fasting triglyceride levels.

METHODS:

a health survey of 140,790 Norwegians free of known coronary heart disease at baseline (1994-2003) were followed through December 2009 via record linkages to the Cause of Death Registry and hospital discharge diagnoses in the CVDNOR project, and evaluated in Cox proportional hazards analyses.

RESULTS:

a total of 3219 (4.8%) men and 1434 (1.9%) women developed an AMI. Women had a steeper gradient risk with increasing triglyceride decile than men, where the highest (≥2.88 mmol/l) compared to the lowest decile (<0.7 mmol/l) was associated with an age-adjusted 4.7-fold excess risk in women in contrast to a 2.8-fold excess risk in men (interaction term, p < 0.001). A significant at-risk HDL-C (<1.0 mmol/l for men and <1.3 mmol/l for women) by triglyceride interaction term was observed. HRs increased with increasing triglyceride quartile in participants with a favourable HDL-C after multivariable adjustment (p for trend <0.001), but triglycerides did not significantly predict AMI among those with low HDL-C. For those with favourable HDL-C, net reclassification index identified a 10% and 14% improvement in classification for men and women, respectively.

CONCLUSION:

non-fasting triglyceride levels among individuals with favourable HDL-C may help identify a subset of individuals at risk for CHD. Further research is warranted in evaluating non-fasting triglycerides in CHD prediction.

KEYWORDS:

Acute myocardial infarction; lipids

PMID:
24817696
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