Table 1.
Total number of positive, low-positive, and false-positive responses detected within a laboratory
| NUMBER OF DETECTED RESPONSES WITHIN A LABORATORYa | PHASE I (LABORATORY SOP): NUMBER OF LABORATORIES | PHASE II (GATING STRATEGY SOP): NUMBER OF LABORATORIES | |
|---|---|---|---|
| True-positive responses | 0 | 0 | 0 |
| 1 | 3 (3%) | 2 (2%) | |
| 2 | 3 (3%) | 1 (1%) | |
| 3 | 8 (7%) | 1 (1%) | |
| 4 | 16 (14%) | 5 (5%) | |
| 5 | 20 (18%) | 17 (16%) | |
| 6 | 61 (55%) | 83 (76%) | |
| True low-positive responses | 0 | 67 (60%) | 56 (51%) |
| 1 | 44 (40%) | 53 (49%) | |
| False-positive responses | 0 | 58 (52%) | 66 (61%) |
| 1 | 28 (25%) | 33 (30%) | |
| 2 | 22 (20%) | 10 (9%) | |
| 3 | 2 (2%) | 0 | |
| 4 | 1 (1%) | 0 |
a
Response is positive if >2 times background (unstimulated).