Table 1 Different cut-off values of TLC predicting CD4 < 200 cells/mm3 for subjects aged 18 years and above, and less than 18 years.
TLC cut-off values (cells/mm3) | Mean CD4 (cells/mm3) | Sensitivity | Specificity | PPV | NPV | |||||
|---|---|---|---|---|---|---|---|---|---|---|
< 18 | ≥ 18 | < 18 | ≥ 18 | < 18 | ≥ 18 | < 18 | ≥ 18 | < 18 | ≥ 18 | |
1000 | 154.5 | 86.6 | 14.9 | 21.8 | 87.0 | 95.3 | 77.0 | 93.2 | 25.8 | 29.3 |
1200 | 150.1 | 99.2 | 20.2 | 41.0 | 87.0 | 83.5 | 82.0 | 87.9 | 27.1 | 32.5 |
1400 | 138.1 | 112.4 | 24.5 | 51.2 | 87.0 | 74.5 | 84.6 | 85.5 | 28.2 | 34.2 |
1600 | 144.9 | 118.8 | 35.1 | 57.3 | 84.8 | 65.5 | 87.1 | 83.0 | 30.8 | 34.3 |
1800 | 148.9 | 124.0 | 40.4 | 63.9 | 78.3 | 55.7 | 84.5 | 80.9 | 30.9 | 34.5 |
2000 | 162.4 | 130.5 | 47.9 | 71.7 | 56.5 | 45.9 | 76.4 | 79.6 | 27.0 | 35.6 |
2200 | 190.3 | 132.9 | 59.6 | 74.5 | 39.1 | 42.0 | 74.2 | 79.1 | 24.8 | 36.0 |