TABLE 2.
Western blot results among concordant positive and discordant RT results during the iPrEx study follow-up period
| Agreement and result | No. (%) of WB results that were: |
Total no. (%) | ||
|---|---|---|---|---|
| Negative | Undetermined | Positive | ||
| Concordant positive | ||||
| Noninfecteda | 0 | 0 | 0 | 0 |
| Infecteda | 4 (2.9) | 28 (20.1) | 107 (77.0) | 139 (100) |
| Subtotal | 4 (2.9) | 28 (20.1) | 107 (77.0) | 139 (100)b |
| Discordant | ||||
| Noninfecteda | 6 (75.0) | 2 (25.0) | 0 (0.0) | 8 (100.0) |
| Infecteda | 2 (18.2) | 2 (18.2) | 7 (63.6) | 11 (100.0) |
| Subtotal | 8 (42.1) | 4 (21.1) | 7 (36.8) | 19 (100.0) |
| Total | 12 (7.6) | 32 (20.3) | 114 (72.2) | 158 (100.0) |
a
Infection was determined by HIV plasma RNA.
b
Three samples with concordant positive RTs were not confirmed by WB.