Fig. 2From: Performance-based financing for improving HIV/AIDS service delivery: a systematic reviewEffects of PBF on HIV service access and quality. *Adjusted odds ratio rather than relative risk presented. Treatment failure defined as CD4 persistently below 100 cells/mm3 after 6–12 months of ART, CD4 falls by ≥50% from on treatment peak value, and/or CD4 falls to or below pre-ART levelBack to article page