Table 1.
Description of participants by baseline age group at ART initiation
| Characteristics | 5–9 years | 10–14 years | 15–19 years | Total |
|---|---|---|---|---|
| Number | 1013 | 875 | 385 | 2273 |
| Female, n (%) | 461 (46) | 430 (49) | 215 (56) | 1106 (49) |
| WHO disease stage 3 or 4, n (%) | 657 (65) | 577 (66) | 239 (62) | 1473 (65) |
| CD4 cells count/mL, median (IQR) | 260 (114, 417) (N = 553) | 191 (84, 330) (N = 429) | 163 (33, 255) (N = 165) | 211 (90, 379) (N = 1147) |
| Year of ART start, n (%) | ||||
| 2005 | 107 (11) | 85 (10) | 37 (10) | 229 (10) |
| 2006 | 171 (17) | 131 (15) | 32 (8) | 334 (15) |
| 2007 | 226 (22) | 194 (22) | 75 (19) | 495 (22) |
| 2008 | 259 (26) | 215 (25) | 95 (25) | 569 (25) |
| 2009 | 250 (25) | 250 (29) | 146 (38) | 646 (28) |
| Number of person years of follow-up | 2624 | 2153 | 794 | 5571 |
| Follow-up time in years per subject, median (IQR) | 2.45 (1.44, 3.64) | 2.30 (1.34, 3.43) | 1.79 (1.15, 2.74) | 2.27 (1.30, 3.44) |
IQR = Inter-Quartile Range; ART = antiretroviral therapy.