Characteristics at the time of transfer for both ART-naïve and ART non-naive patients from a community-based ART service in Gugulethu, Cape Town between September 2002 and December 2009.

All analyses restricted to patients that transferred out with at least 1 year of follow-up on ART at this service. This was done to allow sufficient time for virological suppression as well as for blood samples to be drawn at most 3 times for CD and VL measurements.*CD4 cell count data at the time of transfer were available for 329 ART naïve and 45 ART non naïve patients.†Viral load data at the time of transfer were available for 329 ART naïve and 45 ART non-naïve patients.