Analysing the nutrition-disease nexus: the case of malaria

Malaria Journal

Table 3 Selected numerical results

Baseline ITN coverage (%)	Metric	EIR = 1	EIR = 10	EIR =100	EIR = 500
20	\(1-D_\mathrm{TF}\)	0.23	0.11	0.08	0.07
20	\(D_\mathrm{UI}-D_\mathrm{TI}\)	0.40	0.08	−0.03	−0.01
20	\(D_\mathrm{TI}-D_\mathrm{TF+I}\)	0.03	0.12	0.08	0.07
50	\(1-D_\mathrm{TF}\)	0.35	0.14	0.09	0.07
50	\(D_\mathrm{UI}-D_\mathrm{TI}\)	NA	0.08	−0.02	−0.01
50	\(D_\mathrm{TI}-D_\mathrm{TF+I}\)	NA	0.14	0.09	0.07
80	\(1-D_\mathrm{TF}\)	NA	0.19	0.10	0.08
80	\(D_\mathrm{UI}-D_\mathrm{TI}\)	NA	0.06	−0.01	−0.01
80	\(D_\mathrm{TI}-D_\mathrm{TF+I}\)	NA	0.18	0.11	0.08

The quantity \(D_\mathrm{P}\) is the normalized malaria mortality achieved by policy P
The subscripts TF, UI, TI and TF+I stand for the targeted food policy, the untargeted ITN policy, the targeted ITN policy and the targeted food and targeted ITN policy, respectively, where the WAZ threshold \(\theta =-2\) for the targeted policies and the additional ITN coverage \(\phi \) equals the proportion of children with WAZ \(<-2\) without ITN coverage at baseline
Hence, \(1-D_\mathrm{TF}\) is the reduction in normalized malaria mortality from the targeted food policy, \(D_\mathrm{UI}-D_\mathrm{TI}\) is the reduction in normalized malaria mortality due to targeting ITNs (and is negative if targeting is worse than not targeting), and \(D_\mathrm{TI}-D_\mathrm{TF+I}\) is the marginal reduction in normalized malaria mortality due to adding targeted food to the targeted ITN policy
NA represents the case where both policies in the metric column eliminate malaria
All numbers are taken from Figs. 1b, 2b, 3b, 4b, 5b, 6b and 7b and from Additional file 1: Figures 9b, 10b, 11b, 12b

ISSN: 1475-2875