Rethinking neglected tropical disease prevalence survey design and analysis: a geospatial paradigm

Peter John Diggle, Benjamin Amoah, Claudio Fronterrè, Emanuele Giorgi, Olatunji Johnson

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Abstract

Current methods for the design and analysis of neglected tropical disease prevalence surveys largely rely on classical survey sampling ideas that treat prevalence data from different locations as an independent random sample from the probability distribution induced by a random sampling design. We set out an alternative, explicitly geospatial paradigm that can deliver much more precise estimates of the geospatial variation in prevalence over a country or region of interest. We describe the advantages of this approach under three headings: Streamlining, whereby more precise results can be obtained with smaller sample sizes; integrating, whereby a joint analysis of data from two or more diseases can bring further gains in precision; and adapting, whereby the choice of future sampling location is informed by past data. © 2021 The Author(s). Published by Oxford University Press on behalf of Royal Society of Tropical Medicine and Hygiene.
Original languageEnglish
Pages (from-to)208-210
Number of pages3
JournalTransactions of the Royal Society of Tropical Medicine and Hygiene
Volume115
Issue number3
Early online date15 Feb 2021
DOIs
Publication statusPublished - 6 Mar 2021

Keywords

  • elimination surveys
  • geospatial methods
  • predictive inference
  • prevalence mapping

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