Table 1.
Initial HIV classifications based on rapid antibody test results from two CVCT centres
| Kigali, Rwanda | Lusaka, Zambia | Total | ||||
|---|---|---|---|---|---|---|
| August 1, 2005 - March 30, 2007 | January 1, 2002 - March 30, 2008 | |||||
| N | % | N | % | N | % | |
| Total couples tested | 12,952 | 9,958 | 22,910 | |||
| Clear concordant | ||||||
| M- : F- | 10,122 | 78.15% | 4,567 | 45.86% | 14,689 | 64.12% |
| M+ : F+ | 712 | 5.50% | 3,538 | 35.53% | 4,250 | 18.55% |
| Clear discordant | ||||||
| M+ : F- | 584 | 4.51% | 811 | 8.14% | 1,395 | 6.09% |
| M- : F+ | 733 | 5.66% | 906 | 9.10% | 1,639 | 7.15% |
| Subtotal couples with clear results | 12,151 | 93.82% | 9,822 | 98.63% | 21,973 | 95.91% |
| Indeterminate/Discrepant (D) rapid test results | ||||||
| M- : FD | 242 | 1.87% | 25 | 0.25% | 267 | 1.17% |
| MD : F- | 387 | 2.99% | 50 | 0.50% | 437 | 1.91% |
| MD : FD | 102 | 0.79% | 6 | 0.06% | 108 | 0.47% |
| MD : F+ | 44 | 0.34% | 42 | 0.42% | 86 | 0.38% |
| M+ : FD | 26 | 0.20% | 13 | 0.13% | 39 | 0.17% |
| Subtotal with at least one partner having unclear results | 801 | 6.18% | 136 | 1.37% | 937 | 4.09% |
Initial classifications for couples tested between Kigali, Rwanda, and Lusaka, Zambia, were clearly concordant negative (both partners HIV negative, M-:F-), clearly concordant positive (both partners HIV positive, M+:F+), clearly discordant (one partner negative, one partner positive; M+:F-, M-:F+). Couples classified as indeterminate and/or discrepant (D) either had one partner clearly negative (M-:FD, MD;F-), one partner clearly positive (MD:F+, M+:FD), or both partners indeterminate and/or discrepant (MD:FD).