Table 1

Comparison of HIV-1 plasma VL levels measured by the HIV RT and HIV-1 RNA assays by ART status, HIV-1 subtypes and RT-drug resistant mutations

Sample type	Number of samples	Mean viral load±SD in log₁₀copies/mL		Mean log₁₀ viral load difference±SD in log₁₀copies/mL
Sample type	Number of samples	ExaVir Load V3	Abbott m2000rt	Mean log₁₀ viral load difference±SD in log₁₀copies/mL
All samples	629	3.98±1.3	4.19±1.3	0.22±0.3
ART Status
Naïve (baseline at WK00)	327	5.07±0.6	5.33±0.5	0.25±0.3
Experienced (WK04)	302	2.79±0.5	2.97±0.6	0.19±0.4
Subtype at WK00 (n=319)*
C	313	5.08±0.6	5.33±0.4	0.25±0.3
Non-C	6	5.05±0.5	5.3±0.4	0.25±0.3
DRMs at WK00 (n=319)*
Wild type (no DRM)	308	5.07±0.6	5.32±0.5	0.25±0.3
NRTI mutations	6	5.41±0.3	5.55±0.01	0.15±0.3
NNRTI mutations	5	5.26±0.2	5.62±0.2	0.36+0.2

*Genotyping performed only in baseline samples.
ART, antiretroviral therapy; DRM, drug-resistant mutations, NNRTI, non-nucleoside reverse transcriptase inhibitors; NRTI, nucleoside reverse transcriptase inhibitors; RT, reverse transcriptase; VL, viral load.