Fig. 2From: Comparison of efavirenz levels in blood and hair with pharmacy refills as measures of adherence and predictors of viral suppression among people living with HIV in NigeriaReceiver operating characteristic curve showing the relationship between adherence (DBS EFV & Hair EFV concentration) and viral load (> 50 copies/ml and > 1000 copies/ml). Blue line hair conc.; Green Line DBS conc.; Red diagonal referenceBack to article page