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Modernizing the design and analysis of prevalence surveys for neglected tropical diseases

Philosophical transactions of the Royal Society of London. Series B. Biological sciences, 2023-10, Vol.378 (1887), p.20220276-20220276 [Peer Reviewed Journal]

2023 The Authors. 2023 ;ISSN: 0962-8436 ;EISSN: 1471-2970 ;DOI: 10.1098/rstb.2022.0276

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  • Title:
    Modernizing the design and analysis of prevalence surveys for neglected tropical diseases
  • Author: Diggle, Peter J ; Fronterre, Claudio ; Gass, Katherine ; Hundley, Lee ; Niles-Robin, Reza ; Sampson, Annastacia ; Morice, Ana ; Scholte, Ronaldo Carvalho
  • Is Part Of: Philosophical transactions of the Royal Society of London. Series B. Biological sciences, 2023-10, Vol.378 (1887), p.20220276-20220276
  • Description: Current WHO guidelines set prevalence thresholds below which a neglected tropical disease can be considered to have been eliminated as a public health problem, and specify how surveys to assess whether elimination has been achieved should be designed and analysed, based on classical survey sampling methods. In this paper, we describe an alternative approach based on geospatial statistical modelling. We first show the gains in efficiency that can be obtained by exploiting any spatial correlation in the underlying prevalence. We then suggest that the current guidelines' implicit use of a significance testing argument is not appropriate; instead, we argue for a predictive inferential framework, leading to design criteria based on controlling the rates at which areas whose true prevalence lies above and below the elimination threshold are incorrectly classified. We describe how this approach naturally accommodates context-specific information in the form of georeferenced covariates that have been shown to be predictive of disease prevalence. Finally, we give a progress report of an ongoing collaboration with the Guyana Ministry of Health Neglected Tropical Disease programme on the design of an IDA (ivermectin, diethylcarbamazine and albendazole) Impact Survey of lymphatic filariasis to be conducted in Guyana in early 2023. This article is part of the theme issue ‘Challenges and opportunities in the fight against neglected tropical diseases: a decade from the London Declaration on NTDs’.
  • Publisher: The Royal Society
  • Language: English
  • Identifier: ISSN: 0962-8436
    EISSN: 1471-2970
    DOI: 10.1098/rstb.2022.0276
  • Source: PubMed Central
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