Table 2.
Precision of the Diasys, Evermed, Hengxiao, Diazyme, and Zybio assays
| Manufacturer | Pool‐1 | Pool‐2 | ||||
|---|---|---|---|---|---|---|
| Mean (U/L) (±SD) | Within‐laboratory CV% | Interassay CV% | Mean (U/L) (±SD) | Repeatability CV% | Within‐laboratory CV% | |
| Diasys | 512 ± 10.5 | 1.3% | 1.6% | 1068 ± 24.5 | 1.6% | 1.9% |
| Evermed | 524 ± 7.7 | 0.9% | 1.6% | 1094 ± 21.5 | 1.6% | 2.9% |
| Hengxiao | 151 ± 2.3 | 1.6% | 2.6% | 247 ± 5.0 | 2.6% | 1.9% |
| Zybio | 597 ± 10.6 | 1.1% | 1.1% | 1045 ± 24.0 | 1.1% | 1.9% |
| Diazyme | 140 ± 2.0 | 0.8% | 1.1% | 195 ± 2.1 | 1.1% | 2.0% |
Lp‐PLA2 activity is present as the means ± standard deviations using two known Lp‐PLA2 activities for residual fresh serum. Repeatability and within‐laboratory CV% are shown as the percentage of the coefficient of variation.
CV, coefficient variation.