Table 4. Correlations between serum Lp-PLA2 activity, and plaque and serum Lp-PLA2 mass.
| Serum Lp-PLA2 activity (range in nmol/min/mL) | Plaque Lp-PLA2 a | Serum Lp-PLA2 mass (ng/mL) |
| 1st quartile (13–46.1) | 0.04 (p = 0.822) | −0.47 (p< = 0.001) |
| 2nd quartile (46.2–69) | −0.14 (p = 0.375) | −0.31 (p = 0.043) |
| 3rd quartile (69.1–89.2) | 0.02 (p = 0.987) | 0.37 (p = 0.015) |
| 4th quartile (89.3–143.2) | 0.13 (p = 0.417) | 0.48 (p = 0.001) |
Abbreviations: Lp-PLA2, Lipoprotein-associated phospholipase A2.
a
Values expressed are for plaque Lp-PLA2 grade of ≥1 as there were no significant correlations with grades >1.