Table 3.

Costs and probabilities components for the calculation of.

Cost/Prob.	Value	Source
Cc the cost of chemoprophylaxis	£138.00#	[14]
Cae cost of adverse events	£164.29+	[14,15,17]
Cm cost of acquiring malaria	£18,872.00*	[15,16]
Ct cost of dying of malaria	£312,000	[17]
Cnc cost of avoiding chemoprophylaxis	0	--
Pd probability of using chemoprophylaxis	0.5	[20]
Pae probability of adverse effect	0.4	[21]
Pt probabilityof dying from malaria	0.0004	[22]
e efficacy of prophylaxis	0.9	[23]

Costs are expressed in Sterling Pounds

^#sum of the costs as in table 2, ⁺cost of mild reaction, *cost of serious malaria (see appendix 4 for details).