Table 5.
Summary of Scotia LFA performance in comparison with PreCOX LC-FLD reference method highlighting for each shellfish species the total number of tests, invalid tests, disagreements, positive results, negative results, false-negative and false-positive results.
| Mussel | Clam | Oyster | Geoduck | Snail | Scallop | Misc | Total | |
|---|---|---|---|---|---|---|---|---|
| Total tests | 84 | 41 | 6 | 73 | 32 | 16 | 2 | 254 |
| Invalid tests | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 |
| Disagreements a | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 4 |
| Total Pos | 81 | 24 | 1 | 51 | 27 | 13 | 2 | 199 |
| Total Neg | 2 | 16 | 5 | 22 | 2 | 2 | 0 | 49 |
| False Neg b | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 |
| False Pos c | 17 | 8 | 0 | 46 | 3 | 3 | 0 | 77 |
a Disagreement between visual and automated test strip interpretation. b PreCOX LC-FLD > MPL, with negative LFA result. c PreCOX LC-FLD < 0.5 MPL with positive LFA result.