Summary of demographic and clinical characteristics of the three groups
| Baseline | Group 1 | Group 2 | p Value comparison of all groups | |
| Patients (N) | 200 | 771 | 200 | |
| Mean age (SD) (years) | 35.6 (14.9) | 34.7 (14.1) | 33.6 (14.4) | 0.560 |
| Gender (% female) | 60 | 65 | 62 | 0.489 |
| Number and proportion of adult patients with a recorded CD4 count, N (%) | 127 (63.5) | 496 (64.3) | 154 (77) | 0.002 |
| Median CD4, range (cells/mm3) | 281 (4–2003) | 292 (2–2777) | 240.5 (4–1815) | 0.009 |
| Number and proportion of adult patients with a CD4 count <350, N (%) | 74 (58) | 303 (61) | 107 (72) | 0.002 |
| Number and proportion of adult patients with a CD4 count <200, N (%) | 36 (28) | 167 (34) | 68 (45) | <0.000 |