Table 2. Comparison of Twice-Daily Maraviroc and Efavirenz, Each with AZT/3TC, in Treatment-Naive Patients at Week 48

Twice-Daily Maraviroc Efavirenz Adjusted Difference (Lower Bound of 97.5% Confidence Interval)

Proportion who achieved viral loads <50 copies/mL 65.3% 69.3% –4.2 (–10.9)
Proportion who achieved viral loads <400 copies/mL 70.6% 73.1% –3.0 (–9.5)
Mean change in CD4 count (cells/mm3) from baseline 170 144 26 (7–46)*
Number of patients with a new CDC category C diagnosis 6 (1.7%) 12 (3.3%) N/A

*95% Confidence Interval