Journal
JOURNAL OF THE AMERICAN HEART ASSOCIATION
Volume 12, Issue 5, Pages -Publisher
WILEY
DOI: 10.1161/JAHA.122.026833
Keywords
cognitive impairment; dementia; high-density lipoprotein cholesterol; triglycerides
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A recent study found that elevated nonfasting triglycerides were associated with non-Alzheimer dementia. However, this study did not evaluate the association between fasting triglycerides and incident cognitive impairment (ICI), nor did it adjust for high-density lipoprotein cholesterol or hs-CRP, known risk markers for ICI and dementia.
BackgroundElevated nonfasting triglycerides were associated with non-Alzheimer dementia in a recent study. However, this study neither evaluated the association of fasting triglycerides with incident cognitive impairment (ICI) nor adjusted for high-density lipoprotein cholesterol or hs-CRP (high-sensitivity C-reactive protein), known risk markers for ICI and dementia. Methods and ResultsWe examined the association between fasting triglycerides and ICI among 16 170 participants in the REGARDS (Reasons for Geographic and Racial Differences in Stroke) study without cognitive impairment or a history of stroke at baseline in 2003 to 2007 and who had no stroke events during follow-up through September 2018. Overall, 1151 participants developed ICI during the median follow-up of 9.6 years. The relative risk for ICI associated with fasting triglycerides of >= 150 mg/dL versus <100 mg/dL including adjustment for age and geographic region of residence was 1.59 (95% CI, 1.20-2.11) among White women and 1.27 (95% CI, 1.00-1.62) among Black women. After multivariable adjustment, including adjustment for high-density lipoprotein cholesterol and hs-CRP, the relative risk for ICI associated with fasting triglycerides >= 150 mg/dL versus <100 mg/dL was 1.50 (95% CI, 1.09-2.06) among White women and 1.21 (95% CI, 0.93-1.57) among Black women. There was no evidence of an association between triglycerides and ICI among White or Black men. ConclusionsElevated fasting triglycerides were associated with ICI in White women after full adjustment including high-density lipoprotein cholesterol and hs-CRP. The current results suggest that the association between triglycerides and ICI is stronger in women than men.
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