Table 5.

The relative total cost of annual community-wide versus child-targeted treatment in an intermediate transmission setting

	Relative increase in the distribution costs (total per year) of community-wide versus child-targeted treatment
	+50 %	+100 %	+150 %	+200 %
Time horizon
Coverage of adults: 75 %
20 years	−71 %	−62 %	−52 %	−43 %
35 years	−80 %	−74 %	−67 %	−60 %
50 years	−83 %	−78 %	−72 %	−67 %
Coverage of adults: 55 %
20 years	−45 %	−27 %	−6 %	+9 %
35 years	−62 %	−50 %	−35 %	−24 %
50 years	−68 %	−58 %	−45 %	−37 %
Coverage of adults: 35 %
20 years	+1 %	+4 %	+68 %	+101 %
35 years	−30 %	−7 %	+16 %	+39 %
50 years	−41 %	−23 %	−3 %	+16 %

The results assume an annual treatment strategy, 75 % treatment coverage in children, and 94.8 % treatment efficacy. Costs were discounted at 3 % per year. Results in bold are where the total costs of community-wide treatment are higher than child-targeted treatment (i.e. it was not cost saving and has a higher relative cost). Results for the higher transmission setting are shown in Additional file 1: Table S2