Table 1. First and Second Line Antiretroviral Drugs Procured for Sub-Saharan Africa.

Drug Name	Volume (patient year equivalents)	% of Total Volume	Percentage Brand	Percentage Generic	Avg. Brand Price*	Avg. Generic Price*
First Line ARVs	522,517	96%	35%	65%	277	114
Second Line ARVs	18,984	4%	93%	7%	591	601
Total	541,501	100%	37%	63%	304	116

N = 2,162 orders

Volumes calculated on the basis of WHO daily dosing guidelines to generate patient year equivalents

^*Average prices in $/patient yr and calculated on the basis of total $s paid for drugs/total drugs in category.