Figure 17From: Figures in clinical trial reports: current practice & scope for improvement Percentage of Follow-up Time during Which Participants Had a Specified CD4+ Count and HIV RNA Level. For 28.8% of the 3666 person-years of follow-up in the drug conservation group (Panel A), the HIV RNA level was 400 copies per milliliter or less. Patients received antiretroviral therapy during 33% of the follow-up time. For 72.3% of the 3701 person-years of follow-up in the viral suppression group (Panel B), the HIV RNA level was 400 copies per milliliter or less. Patients received antiretroviral therapy during 94% of the follow-up time. (SMART Study Group. NEJM Nov 30, 2006 p2288) Back to article page