Baseline characteristics of patients on NVP and EFV by study design.

1These two studies compared NVP 400 mg once daily to EFV 600 mg once daily. All other studies compared NVP200 mg twice daily to EFV 600 mg once daily. 2Studies in TB/HIV co-infected patients on TB treatment. 3after July 2007, the definition of failure changed from more than 5000copies/ml to more than 400copies/ml. Abbreviations: EFV efavirenz NVP nevirapine Dash (–) Not provided VS Virologic suppression VF Virologic failure Italics: Overall cohort characteristics not differentiated by NNRTI.