Table 1. Quality control testing.
| Concentration spiked (U/mL) | Concentration found intra assay (mean SD, n= 20) (U/mL) | Precision intra assay (%) | Concentration found inter assay (mean SD, n= 20) (U/mL) | Reproducibility(%) |
|---|---|---|---|---|
| Architect CA 19-9 assay CMIA technology | ||||
| 26-54 | 37±1.87 | 5.0 | 41±0.21 | 5.2 |
| 102-198 | 155±6.0 | 3.9 | 145± 5.6 | 3.9 |
| 510-990 | 734±14.7 | 2.0 | 755±15.1 | 2.0 |
| Cobas CA 19-9 assay ECLIA technology | ||||
| 16.1-27.9 | 22.10±0.99 | 4.5 | 23.5±1.10 | 4.7 |
| 83.7-128 | 90.43± 2.71 | 3.0 | 95.6±3.82 | 4.0 |
| Vitros CA 19-9 assay Intellicheck® technology | ||||
| 26-44.5 | 33±1.87 | 5.6 | 36±1.21 | 3.36 |
| 40.2-74.7 | 57+.1.20 | 2.1 | 58± 0.6 | 1.03 |
| 119-178 | 149±4.7 | 3.1 | 155±5.1 | 3.29 |