Table 2.

18-month postnatal transmission of HIV among children uninfected at 4 weeks of age and according to different thresholds of maternal antenatal CD4 count. Pooled analysis of the Vertical Transmission Study (South Africa, 2001–2007) and the Ditrame Plus Study (Côte d’Ivoire, 2001–2005). N=1151.

Antenatal maternal CD4 count (cells/ml)	N	Number of children HIV-infected through breastfeeding	HIV postnatal transmission (%)	95% confidence interval
< 200	119	15	15.3	9.5–24.2
≥ 200	1032	57	6.2	4.9–8.0
< 250	181	20	11.0	5.3–16.2
≥ 250	970	52	5.4	3.5–6.5
< 350	353	38	12.6	9.3–16.9
≥ 350	798	34	4.8	3.4–6.6
< 200	119	15	15.3	9.5–24.2
200–349	234	23	11.3	7.6–16.5
350–500	320	18	6.3	4.9–9.1
≥ 500	478	16	3.7	2.3–6.0

Adapted from Becquet et al. CROI 2008 [35]