Journal
ATHEROSCLEROSIS
Volume 266, Issue -, Pages 1-7Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.atherosclerosis.2017.09.013
Keywords
Lp-PLA(2) mass; All-cause mortality; Vascular events; Acute ischemic stroke; Prognosis
Funding
- National Natural Science Foundation of China [81320108026]
- China Postdoctoral Science Foundation [156458]
- Jiangsu Postdoctoral Science Foundation [1601121B]
- Natural Science Foundation of Zhejiang Province [LY17H260002]
- National Natural Science Foundation of Ningbo [2017A610219]
- Priority Academic Program Development of Jiangsu Higher Education Institutions, China
- Tulane University in New Orleans, Louisiana
- Collins C. Diboll Private Foundation, in New Orleans, Louisiana
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Background and aims: We performed a prospective investigation of the longer-term prognostic value of lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) mass for all-cause mortality and vascular events within one year after acute ischemic stroke. Methods: We examined the Lp-PLA(2) mass among 3401 participants enrolled in the China Antihypertensive Trial in Acute Ischemic Stroke. The primary outcome was all-cause mortality. Cox proportional hazard ratios (HRs) and 95% confidence intervals (95% CIs) were constructed to assess the independent associations between the baseline Lp-PLA(2) mass and the outcomes after adjustment for variables in models 1, 2, and 3 [further adjusted for low-density lipoprotein cholesterol (LDL-C)]. Results: Overall, 3278 patients completed the follow-up, during which, 188 all-cause death events occurred. The Kaplan-Meier survival curve showed that the cumulative incidence rate of all-cause mortality increased across quartiles of Lp-PLA(2) mass (log-rank p = 0.018). Compared with the lowest quartile of Lp-PLA(2), the HRs (95% CIs) for the highest quartile of Lp-PLA(2) were 1.89 (1.22-2.91), 2.16 (1.31-3.55), and 2.17 (1.32-3.58) for all-cause mortality after adjusting for the covariables in models 1, 2, and 3, respectively. In addition, patients in the highest quartile of Lp-PLA(2) mass coupled with higher LDL-C had significantly highest risk of all-cause mortality (HR, 1.81; 95% CI, 1.05 to 3.11; p = 0.032). Conclusions: The elevated Lp-PLA(2) mass was associated with all cause-death independently of other risk factors within one year after acute ischemic stroke. (C) 2017 Elsevier B.V. All rights reserved.
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