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Table 2 Data sources and properties of the predictors explored to model soil-transmitted helminth infection risk in Bolivia

From: Modelling the geographical distribution of soil-transmitted helminth infections in Bolivia

Data type Source Date Temporal resolution Spatial resolution
19 climatic variables related to temperature and precipitation WorldClim1 1950-2000 - 1 km
Altitude SRTM2 2000 - 1 km
Land cover MODIS/Terra3 2000-2011 Yearly 1 km
EVI / NDVI MODIS/Terra3 2000-2011 16 days 1 km
Soil acidity / soil moisture ISRIC-WISE4 1960-2000 - 10 km
Unsatisfactory basic needs (UBN) Census5 2001 10 years Municipality
Infant mortality rate (IMR) CIESIN6 2005 Yearly 5 km
Human influence index (HII) LTW7 2005 - 1 km
Human development index (HDI) PAHO8 2005 - Municipality
Population density WISE34 2010 - 10 km
School-aged children proportion IDB9 2010 - Country
  1. 1 WorldClim Global Climate database v.1.4; available at: http://www.worldclim.org/ (accessed: 1 March 2012).
  2. 2 Shuttle Radar Topography Mission (SRTM); available at: http://www.worldclim.org/ (accessed: 1 March 2012).
  3. 3 Moderate Resolution Imaging Spectroradiometer (MODIS); available at: https://lpdaac.usgs.gov/ (accessed: 15 December 2012).
  4. 4 Global soil profile data ISRIC-WISE database v.1.2; available at: http://www.isric.org/ (accessed: 15 December 2012).
  5. 5 Instituto nacional de estadística, 2001 census; available at: http://www.ine.gob.bo/ (accessed: 1 March 2012).
  6. 6 2005 Global subnational infant mortality rates, Center for International Earth Science Information Network (CIESIN). CIESIN, Palisades, NY, USA; available at: http://www.ciesin.columbia.edu/povmap/ds_global.html (accessed: 1 March 2012).
  7. 7 Last 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: 1 March 2012).
  8. 8 Pan American Health Organization; personal communication.
  9. 9 International Data Base (IDB) United States Census Bureau; available at: http://www.census.gov/population/international/ (accessed: 1 March 2012).