Table 2.

Cost parameters used in the analysis

Parameter	Value	Lower value for sensitivity analysis	Upper value for sensitivity analysis
Unit costs (2008) USD
First-line ART per patient per year	$526*	$421	$631
Second-line ART per patient per year	$1268*	$1014	$1522
Resistance test	$241.55†	$120.78	$362.33
Viral load test	$36.23†	n.a.	n.a.
Discount rate applied to future costs (annual)	3.0%
Exchange rate (Rand/$)	8.28‡

*Long et al, 2010 [5]

^† Authors' data from National Health Laboratory Service, South Africa

^‡Exchange rate taken from source [5]; average daily exchange rate in 2008