TABLE 3.
Discordance for HIV-1 RNA levels at <200 copies/mla
| Assay (at <200 copies/ml) | % discordant results of ≥200 copies/ml (no. of discordant samples/total no. of samples) |
|||
|---|---|---|---|---|
| Amplicor | RealTime | TaqMan v1 | TaqMan v2 | |
| Amplicor | NA | 5 (58/1,161) | 3 (7/204) | |
| RealTime | NA | 10 (37/356) | 7 (49/728) | |
| TaqMan v1 | 7 (85/1,188) | 16 (59/378) | 7 (25/236) | |
| TaqMan v2 | 3 (7/204) | 3 (22/701) | 1 (3/314) | |
a
Shown are the percentages of results that were discordant between the assays at a threshold of 200 copies/ml. The percentage of discordant samples decreased for all comparisons when a threshold of 200 copies/ml was used, compared to a 50-copies/ml threshold. NA, not available.