Explanation of variable:
IF AVAILABLE, type of ASSAY used for this measurement
| 1 | Roche qualitative (Amplicor) [HCV and HBV] |
| 10 | Rapid diagnostic test -3rd generation [HIV] |
| 11 | Rapid diagnostic test -4th generation [HIV] |
| 12 | Self-test-oral [HIV] |
| 13 | Self-test-blood-based [HIV] |
| 14 | Immunoassay (EIA, CLIA, ECL) - 3rd generation [HIV] |
| 15 | Immunoassay (EIA,CLIA, ECL) plus p24 - 4th generation [HIV] |
| 16 | WB: Western blot/immunoblot [HIV] |
| 17 | NAT (Nucleic Acid Test) [HIV] |
| 2 | Roche quantitative test for HBV (Cobas Amplicor HBV monitor) |
| 3 | Bayer Bdna quantitative [HCV] |
| 4 | Bayer Bdna quantitative [HBV] |
| 5 | Roche Taqman |
| 6 | Abbott Real Time [HCV and HBV] |
| 7 | Siemens VERSANT [HCV and HBV] DNA (bNA) |
| 8 | Quiagen artus [HCV and HBV] PCR kit |
| 9 | Other |