| Immunological Criteria | Frequency | Percentage | Frequency of virological failure | Percentage of virological failure | Frequency of discordance | Percentage of discordance | ||||
| >10,000 VL copies/ml | >1000 VL copies/ml | >10,000 VL copies/ml | >1000 VL copies/ml | >10,000 VL copies/ml | >1000 VL Copies/ml | >10,000 VL Copies/ml | >1000 VL copies/ml | |||
| CD4 count below base | 155 | 56.77 | 105 | 111 | 67.7% | 71.6% | 50 | 44 | 32.2% | 28% |
| CD4 count 50% fall | 216 | 79.1 | 146 | 154 | 67.69% | 71.2% | 70 | 62 | 32.4% | 28.7% |
| CD4 count <100 | 163 | 59.7 | 116 | 122 | 71.1% | 74.8% | 47 | 41 | 28.8% | 25.1% |