Table 1.
Comparison of results of the chromogenic Bethesda assay (CBA) and the fluorescence immunoassay (FLI) with the Nijmegen-Bethesda assay (NBA). Results shown in bold are discordant, with positive NBA results and negative CBA or FLI results or with negative NBA results and positive CBA or FLI results.
| Nijmegen-Bethesda Units (NBU) | Chromogenic Inhibitor Units (CBU) n (%)
|
Fluorescence Immunoassay Units (FLIU) n (%)
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | <0.5 | 0.5–0.9 | 1.0–1.9 | 2.0–4.9 | ≥5.0 | n | <0.47 | 0.47–0.99 | 1.00–1.99 | 2.00–4.99 | ≥5.00 | |
|
|
|
|||||||||||
| <0.5 | 883 | 880 (99.7) | 3 (0.3) | 0 | 0 | 0 | 169 | 133 (78.7) | 29 (17.2) | 6 (3.6) | 1 (0.6) | 0 |
| 0.5–0.9 | 51 | 29 (56.9) | 19 (37.3) | 2 (3.9) | 1 (2.0) | 0 | 36 | 18 (50.0) | 6 (16.7) | 3 (8.3) | 7 (19.4) | 2 (5.6) |
| 1.0–1.9 | 29 | 8 (27.6) | 10 (34.5) | 6 (20.7) | 5 (17.2) | 0 | 29 | 0 | 13 (44.8) | 8 (27.6) | 5 (17.2) | 3 (10.3) |
| 2.0–4.9 | 12 | 0 | 0 | 1 (8.3) | 10 (83.3) | 1 (8.3) | 13 | 1 (7.7) | 3 (23.1) | 2 (15.4) | 5 (38.5) | 2 (15.4) |
| ≥5.0 | 30 | 0 | 0 | 0 | 2 (6.7) | 28 (93.3) | 25 | 0 | 0 | 3 (12.0) | 10 (40.0) | 12 (48.0) |