Table 2.
Repeatability and total imprecision of CRP and SAA determinations on the XPEN60
| CRP | SAA | |||||
|---|---|---|---|---|---|---|
| Level1 | Level2 | Level3 | Level1 | Level2 | Level3 | |
| Repeatability | ||||||
| Mean value(mg/L) | 4.51 | 34.1 | 96.41 | 9.73 | 41.47 | 139.92 |
| SR(mg/L) | 0.22 | 1.83 | 4.46 | 0.68 | 2.23 | 9.99 |
| 95% lower limit (CV%) | 4 | 4.41 | 3.8 | 5.74 | 4.42 | 5.86 |
| 95% upper limit (CV%) | 6.24 | 6.87 | 5.92 | 8.94 | 6.89 | 9.14 |
| CV% | 4.84 | 5.37 | 4.63 | 7.03 | 5.37 | 7.14 |
| 1/4 TEa (CV%) | 14.15 | 9.28 | ||||
| Total imprecision | ||||||
| Mean value(mg/L) | 4.51 | 34.1 | 96.41 | 9.73 | 41.47 | 139.92 |
| SWL(mg/L) | 0.24 | 2.09 | 6.13 | 0.8 | 2.3 | 15.21 |
| 95% lower limit (CV%) | 4.94 | 5.54 | 5.43 | 7.33 | 5.12 | 8.54 |
| 95% upper limit (CV%) | 6.99 | 7.84 | 7.68 | 10.37 | 7.24 | 12.07 |
| CVWL% | 5.39 | 6.13 | 6.36 | 8.26 | 5.54 | 10.87 |
| 1/3 TEa (CV%) | 18.87 | 12.37 | ||||
95% verification limit determined as F×%CV (SR or SWL) according to the CLSI document EP5‐A3; SR, user estimate for repeatability; SWL, user estimate for total imprecision; TEa is from CLIA'88 deduced by Biological Variation.