Table 1. Patient characteristics of 279 HAART-treated patients with low-level viremia followed longitudinally.

Variable	N (%) or Median (IQR)
Male gender	226 (81%)
Age at HAART initiation (years)	40 (33−47)
History of injection drug use	126 (45%)
Baseline CD4 cell count (cells/mm3)	390 (230−530)
Baseline plasma viral load by TaqMan v1(HIV RNA copies/mL)	75 (53–121)
Baseline plasma viral load by Amplicor v1.5 (HIV RNA copies/mL)	<50 (<50–68)
Previous therapy experience (months)	54.2 (21.1−94.6)
Follow-up from baseline to last visit (months)	3.2 (2.0−4.2)

IQR: Interquartile Range.