Abstract | OBJECTIVE: METHODS AND RESULTS: Olmsted County, Minn, residents who experienced an MI meeting standardized criteria between 2003 and 2005 (n = 271) were prospectively identified and followed. Lp-PLA2 levels were measured at baseline and evaluated along with traditional risk indicators. Lp-PLA2 was modestly associated with total and low-density lipoprotein cholesterol, smoking, and age (inversely) but not with MI characteristics or severity, comorbidities, C-reactive protein, or the time from symptom onset to blood sampling. During the first year of follow-up, 42 deaths occurred. The survival estimates (95% confidence intervals [CI]) at 1 year were 92% (86% to 98%), 85% (78% to 93%), and 74% (65% to 84%) in the lowest, middle, and upper Lp-PLA2 tertiles, respectively (P = 0.007). After adjustment for age and sex, the hazard ratios for death in the middle and upper Lp-PLA2 tertiles were 2.20 (95% CI: 0.88 to 5.54) and 4.93 (95% CI: 2.10 to 11.60), compared with the lowest tertile, respectively (P(trend) < 0.001). Further adjustment for other risk indicators resulted in even stronger associations. Lp-PLA2 also contributed to risk discrimination as indicated by the increases in the area under the receiver operating characteristic curves obtained in each of the models examined (all P < or = 0.05). CONCLUSIONS: Among community subjects presenting with MI, increased Lp-PLA2 levels measured early after MI are strongly and independently associated with mortality and provide incremental value in risk discrimination over traditional predictors.
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Authors | Yariv Gerber, Joseph P McConnell, Allan S Jaffe, Susan A Weston, Jill M Killian, Véronique L Roger |
Journal | Arteriosclerosis, thrombosis, and vascular biology
(Arterioscler Thromb Vasc Biol)
Vol. 26
Issue 11
Pg. 2517-22
(Nov 2006)
ISSN: 1524-4636 [Electronic] United States |
PMID | 16902161
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Chemical References |
- Phospholipases A
- Phospholipases A2
- 1-Alkyl-2-acetylglycerophosphocholine Esterase
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Topics |
- 1-Alkyl-2-acetylglycerophosphocholine Esterase
- Aged
- Aged, 80 and over
- Cohort Studies
- Female
- Humans
- Male
- Middle Aged
- Myocardial Infarction
(enzymology, mortality)
- Phospholipases A
(blood)
- Phospholipases A2
- Predictive Value of Tests
- Prognosis
- Proportional Hazards Models
- Prospective Studies
- ROC Curve
- Risk Assessment
- Survival Analysis
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