Table 2. Antiretroviral therapy input parameters for model-based analyses.

Variable	Base Case Value	Monthly Cost (US$)	Reference
Antiretroviral therapy efficacy: % HIV RNA suppression at 24 weeks, mean increase in CD4 cell count at 48 weeks
First line	86.0	1,430	[19], [25], [30]
	190 cells/µl
Second line	73.3	2,050	[21], [22], [30]
	110 cells/µl
Third line	61.3	2,040	[21], [22], [30]
	121 cells/µl
Fourth line	64.5	2,630	[20], [30]
	102 cells/µl*
Fifth line	40.0	4,000	[23], [24], [30]
	121 cells/µl
Sixth line	15.0	1,740	[24], [30]
	45 cells/µl

*At 24 weeks.