Table 4.
Beach management accuracy resulting from use of E. coli culture results available to beach managers (collected on Day0), using Day1 qPCR BAV exceedance as the gold standard
| Beach | Correct: advisory | Correct: no advisory | Failure to act | False alarm | Total |
|---|---|---|---|---|---|
| 1 | 4 (3.8) | 58 (55.2) | 6 (5.7) | 37 (35.2) | 105 (100) |
| 2 | 0 (0.0) | 37 (92.5) | 0 (0.0) | 3 (7.5) | 40 (100) |
| 3 | 1 (2.3) | 36 (81.8) | 3 (6.8) | 4 (9.1) | 44 (100) |
| 4 | 0 (0.0) | 36 (83.7) | 0 (0.0) | 7 (16.3) | 43 (100) |
| 5 | 0 (0.0) | 33 (71.7) | 2 (4.4) | 11 (23.9) | 46 (100) |
| 6 | 5 (5.0) | 67 (67.0) | 5 (5.0) | 23 (23.0) | 100 (100) |
| 7 | 0 (0.0) | 77 (81.9) | 4 (4.3) | 13 (13.8) | 94 (100) |
| 8 | 2 (2.0) | 66 (64.7) | 6 (5.9) | 28 (27.5) | 102 (100) |
| 9 | 1 (1.0) | 59 (57.8) | 6 (5.9) | 36 (35.3) | 102 (100) |
| All | 13 (1.9) | 469 (69.4) | 32 (4.7) | 162 (24.0) | 676 (100) |