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Table 1 Parameter list and values for decision tree models

From: Cost effectiveness and resource allocation of Plasmodium falciparum malaria control in Myanmar: a modelling analysis of bed nets and community health workers

  Model parameter Symbol Default value Lower estimate Upper estimate Source
Setting Baseline access to treatment (% of cases receiving ACT) a 30 % 1 % 95 % 2011 MARC survey indicates low availability, but recently survey by PSI indicates a substantial increase
Cost of treatment c ACT $3 1 10 Wholesale price of diagnosis and treatment, consumables only.3MDG
Proportion of malaria cases that die in absence of treatment μ 1 % 0.1 % 10 % Expert opinion [14]
Probability of getting malaria m 5 % 0.1 % 30 % Probability of malaria is highly variable but changes do not affect comparative analysis between intervention options
Probability that a person with malaria uses a CHW (where available) q 30 % 1 % 95 % Community survey by Department of Medical Research in Myanmar finds 19 % of surveyed first seek treatment at CHW (unpublished). Community survey in Cambodia finds low utilisation of CHW in villages with a CHW (Yeung et al. unpublished)
Mean number of disability adjusted life years lost per death d 30 15 45 Assumed based on life expectancy of 65 years and knowing that most malaria deaths in Myanmar are adults
Village population v 500 Village size is based on unpublished unicef data. At the time of the study the village level census data was unavailable
Intervention Annual cost of ITN per person c ITN $0.70 $0.50 $1.5 Estimated
Annual cost of CHW per person c CHW $2 $1.10 $4.50 Kyaw et al. under review
ITN protective efficacy p 30 % 0 % 50 % [5, 9, 15, 16]
Reduction in mortality after treatment with ACT or ACT + PQ r 1 90 % 50 % 99 % Expert opinion