Table 2.

Incidence of severe anemia in the first six months of HAART by baseline anemia status.

Anemia at baseline	Children (N=1648)	Severe anemia	Incidence per 100 child years (95% CI)	Hgb at HAART, gd/L median (IQR)	Hgb at severe anemia, gd/L median (IQR)
No anemia	1123	20	3.3 (2.2–5.2)	10.9 (10.3–11.3)	6.6 (5.4–7.1)
Mild anemia	407	19	9.0 (5.7–14.0)	9.4 (9.0–9.7)	6.3 (4.5–6.9)
Moderate anemia	118	8	13.3 (6.7–26.6)	8.1 (7.7–8.3)	6.4 (5.5–7.1)

HAART, highly active antiretroviral therapy; Hgb, hemoglobin.

Classification of anemia was based on the US NIH Division of AIDS 2004 toxicity grading table (9).