TABLE 2.
Sensitivity, specificity, and predictive values of various methods
| Method and antigen(s) used | Sensitivity (%) (no. positive/no. tested) | Specificity (%) (no. negative/no. tested) | Predictive value
|
|
|---|---|---|---|---|
| Positive (%) | Negative (%) | |||
| Immune complex transfer enzyme immunoassay | ||||
| rRT | 100 (79/79) | 100 (200/200) | 100 | 100 |
| Ser-Ser-rp51 | 100 (79/79) | 100 (200/200) | 100 | 100 |
| Western blotting | ||||
| gp160 | 100 (79/79) | 99 (99/100) | 99 | 100 |
| gp41 | 99 (78/79) | 98 (98/100) | 98 | 100 |
| p66 | 96 (76/79) | 100 (100/100) | 100 | 99 |
| p51 | 90 (71/79) | 97 (97/100) | 96 | 95 |
| p24 | 87 (69/79) | 85 (85/100) | 82 | 90 |
| p17 | 71 (56/79) | 97 (97/100) | 95 | 82 |
| ELISA; gp120, gp41, p24, p17, p15 | 100 (79/79) | 99 (130/131) | 99 | 100 |