Volume 13, Number 2—February 2007
Dispatch
Pneumocystis Pneumonia in HIV-positive Adults, Malawi1
Table 1
Baseline characteristics of study participants at enrollment, Malawi, 2002–2004*
| Characteristic | No. episodes | PYO |
|---|---|---|
| CD4 (cells/mm3) | ||
| 0–99 | 125 | 83 |
| 100–199 | 159 | 145 |
| 200–499 | 271 | 268 |
| >500 | 77 | 75 |
| Missing at enrollment | 28 | 19 |
| HIV clinical stage† | ||
| I | 267 | 255 |
| II | 191 | 190 |
| III | 160 | 120 |
| IV | 42 | 25 |
| Total | 660 | 591 |
*PYO, person-years of observation (based on enrollment characteristics).
†As defined by World Health Organization criteria.


