Table 1.
Disease Stage for 142 HIV infected Nigerian patients using the 1993 Revised CDC Classification System for HIV Infection
| CD4+ T cell categories (cells/mm3) | Clinical categories | ||
|---|---|---|---|
| A | B | C | |
| Asymptomatic, acute (primary) HIV | Symptomatic, not A or C Conditions | AIDS Indicator Conditions | |
| ≥500 | A1 (1) | B1 (0) | C1 (0) |
| 200-499 | A2 (10) | B2 (12) | C2 (16) |
| <200 | A3 (19) | B3 (35) | C3 (44) |
Persons in categories A3, B3, C1, C2, and C3 have AIDS under the 1993 surveillance case definition i.e. 19 + 35 + 44 + 16 = 114. This gives 83.2% for the proportion with AIDS (computed with 137 as the total number due to 5 missing CD4 counts)