Table 2 Equations used to calculate minimum and maximum average unit costs and total costs per malaria type

Equation 1

Average cost per SM^a case in HBM^b = Diagnostic cost + Antimalarial drugs cost

Equation 2

Minimum average cost per malaria case type by healthcare level = Consultation cost_t,f + Medical visit cost_t,f + Diagnosis cost_t,f + Antimalarial drugs cost_t,f + additional laboratory tests costs_t,f + other prescribed medications minimum costs_t,f

Equation 3

Maximum average cost per SM^a or SMD^c case by healthcare level = Consultation cost_t’,f + Medical visit cost_t’,f + Diagnosis cost_t’,f + Antimalarial drugs cost_t’,f + additional laboratory tests costs_t’,f + other prescribed medications maximum cost_t’,f

Equation 4

Maximum average cost per SVM^d case at DH^e = Equation 2 + other prescribed medications maximum cost + medical supplies costs

Equation 5

95% Confidence Interval of a count variable = C ± Z_1–α/2√C

Equation 6

Minimum total cost per malaria type by health facility

 = minimum average unit cost _{t, l} x lower bound 95% CI cases _{t, l}

Equation 7

Maximum total cost per malaria type by health facility

 = maximum average unit cost_{t, l} x higher bound 95% CI cases_{t, l}

Equation 8

Total costs of diagnosing and treating malaria in the three districts:

Minimum: sum of minimum total cost per malaria type

Maximum: sum of maximum total cost per malaria type