Results of Kaplan-Meier, Log Rank, and Proportional Hazards Regression Analyses Describing Survival From First CD4 T-Lymphocyte Count, by CD4 Count, of HIV-Infected Persons Who Did and HIV-Infected Persons Who Did Not Develop Anemia
| CD4 Category (cells/μL) . | Persons . | Deaths N (%) . | Median Survival, Months (99% CI) . | Risk Ratio (99% CI) . | |||
|---|---|---|---|---|---|---|---|
| Included . | With Anemia* (%) . | Diagnosis of Anemia* . | No Diagnosis of Anemia* . | P (log rank) . | |||
| 0-49 | 4,340 | 2,915 (67) | 2,999 (69) | 12 (12-12) | 15 (15-17) | .0001 | 1.4 (1.3-1.6) |
| 50-99 | 1,700 | 972 (57) | 1,007 (59) | 20 (19-21) | 25 (22-29) | .0001 | 1.4 (1.2-1.7) |
| 100-149 | 1,292 | 613 (47) | 595 (46) | 25 (24-28) | 33 (29-40) | .0001 | 1.4 (1.1-1.8) |
| 150-199 | 1,190 | 494 (42) | 468 (39) | 29 (26-32) | 48 (40-58) | .0001 | 1.9 (1.4-2.5) |
| ≥200 | 10,691 | 2,267 (21) | 1,563 (15) | 48 (46-51) | …† | .0001 | 2.5 (2.1-2.9) |
| CD4 Category (cells/μL) . | Persons . | Deaths N (%) . | Median Survival, Months (99% CI) . | Risk Ratio (99% CI) . | |||
|---|---|---|---|---|---|---|---|
| Included . | With Anemia* (%) . | Diagnosis of Anemia* . | No Diagnosis of Anemia* . | P (log rank) . | |||
| 0-49 | 4,340 | 2,915 (67) | 2,999 (69) | 12 (12-12) | 15 (15-17) | .0001 | 1.4 (1.3-1.6) |
| 50-99 | 1,700 | 972 (57) | 1,007 (59) | 20 (19-21) | 25 (22-29) | .0001 | 1.4 (1.2-1.7) |
| 100-149 | 1,292 | 613 (47) | 595 (46) | 25 (24-28) | 33 (29-40) | .0001 | 1.4 (1.1-1.8) |
| 150-199 | 1,190 | 494 (42) | 468 (39) | 29 (26-32) | 48 (40-58) | .0001 | 1.9 (1.4-2.5) |
| ≥200 | 10,691 | 2,267 (21) | 1,563 (15) | 48 (46-51) | …† | .0001 | 2.5 (2.1-2.9) |
*At any time before death, loss to follow-up, or August 1996.
Ellipsis indicates that median survival could not be estimated in this group because number of deaths was low.