TABLE 2

Discordance for HIV-1 RNA levels at <50 copies/ml

Assay (at <50 copies/ml)% discordant results of ≥50 copies/ml (no. of discordant samples/total no. of samples)a
AmplicorRealTimeTaqMan v1TaqMan v2
AmplicorNA73 (598/819)6 (10/172)
RealTimeNA27 (63/230)13 (73/569)
TaqMan v111 (27/248)23 (49/216)24 (50/206)
TaqMan v25 (8/170)7 (40/356)25 (51/207)
  • a Shown are the percentages of results that were discordant between the assays at a threshold of 50 copies/ml. NA, not available.