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Table 2 The number of morbidity case years averted for the three different strategies

From: An economic evaluation of expanding hookworm control strategies to target the whole community

Transmission setting Intensity thresholds for morbidity Annual child-targeted treatment Biannual child-targeted treatment (a) Community-wide treatment (a)
Intermediate Lower 370 498 (35 %) 3136 (748 %)
  Higher 2.4 3.2 (33 %) 9.8 (317 %)
High Lower 1230 1638 (33 %) 6075 (394 %)
  Higher 93 135 (46 %) 583 (527 %)
  1. aPercentage gain relative to annual child-targeted treatment. The effect is expressed in terms of morbidity case years prevented i.e. the number of years lived with morbidity averted across the time horizon. For each year the effectiveness was calculated as the difference between the number of cases and the number in absence of treatment. The results assume 75 % coverage per round of targeted age group(s), a total population size of 200,000, a discount rate of 3 %, and 94.8 % treatment efficacy. Analysis was conducted with a two-year implementation period and a 15-year time horizon (i.e. looking at the effect of two years of treatment for 15 years). The intensity thresholds for morbidity are presented in Table 1