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Coefficients of variation for PSA and CA 19-9 ELISA in accumulation mode.
| PSA Concentration (pg/mL) | 1000 | 200 | 40 | 8 | 1.6 |
|---|---|---|---|---|---|
| CV (%) (Concentration Enhanced ELISA) |
14.6 | 11.4 | 9.9 | 12.7 | 14.6 |
| CA 19-9 Concentration (U/mL) | 6.25 | 1.25 | 0.25 | 0.05 | 0 |
| CV (%) (Concentration Enhanced ELISA) |
6.2 | 2.0 | 1.7 | 16.5 | 8.4 |
| CV (%) (Bead Based Concentration Enhanced ELISA) |
23.7 | 18.7 | 37.2 | 33.6 | 7.5 |
