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Table 1 Data sources and properties of the predictors explored to model soil-transmitted helminth infection risk in Brazil

From: Spatio-temporal distribution of soil-transmitted helminth infections in Brazil

Data type Source Temporal resolution Spatial resolution
Temperature and precipitationa WorldClimb 1950-2000 1 km
Altitude SRTMc 2000 1 km
Soil acidity/soil moisture ISRIC-WISEd 1960-2000 10 km
Human influence index (HII) LTWe 2005 1 km
Human development index (HDI) Atlas Brasil 2013f 2000 and 2010 Municipality
Poor households Atlas Brasil 2013f 2000 and 2010 Municipality
Rurality, improved water supply, sewage system and waste treatment Ministério da Saúdeg 2010 Municipality
Population density GPWFEh 2010 10 km
  1. aA total of 19 climatic variables related to various factors were considered.
  2. bWorldClim Global Climate database version 1.4; available at: http://www.worldclim.org/ (accessed: March 2012).
  3. cShuttle Radar Topography Mission (SRTM); available at: http://www.worldclim.org/ (accessed: March 2012).
  4. dGlobal soil profile data ISRIC-WISE database version 1.2; available at: http://www.isric.org/ (accessed: December 2012).
  5. eLast of the Wild Data version 2, 2005 (LTW-2): Global Human Footprint Dataset (Geographic). Wildlife Conservation (WCS) and Center for International Earth Science Information Network (CIESIN); available at: http://www.ciesin.org/wildareas/ (accessed: December 2013).
  6. fAtlas do Desenvolvimento Humano no Brasil 2013; available at: http://atlasbrasil.org.br/ (accessed: December 2013).
  7. gMinistério da Saúde, Brazil; available at: http://www2.datasus.gov.br/DATASUS/index.php (accessed: December 2013).
  8. hGridded population of the world: future estimates (GPWFE): Center for International Earth Science Information Network (CIESIN), UN Food and Agriculture Organization (FAO) and Centro Internacional de Agricultura Tropical (CIAT); available at: http://sedac.ciesin.columbia.edu/gpw (accessed: December, 2012).