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Table 5 Population at risk of STH infection in 2010

From: The global limits and population at risk of soil-transmitted helminth infections in 2010

    Population at risk (PAR) of infection (millions)
Region Total Pop(millions) Excluded popa
(millions)
Hookworm A. lumbricoides T. trichiura Any STH species
Stableb Unstablec Stableb Unstablec Stableb Unstablec Stabled Unstablee
Total population
Global 5,634.9 78.3 5,076.6 269.4 5,231.3 184.5 5023.3 284.0 5,340.1 143.4
SSA 864.7 0.08 810.5 48.9 715.7 98.8 715.7 98.8 810.5 48.9
NA/ME 447.4 38.6 268.3 83.7 254.3 85.2 254.3 85.2 268.3 83.7
Asia and Oceania 3,748.3 36.5 3,493.8 79.4 3,686.4 10.4 3,493.8 84.3 3,686.4 10.4
LAC and Caribbean 589.4 3.11 503.9 57.5 574.8 0.4 559.3 15.7 574.8 0.4
School-aged (5–14 years) population
Global 1078.9 12.5 966.1 55.5 990.7 43.2 948.5 62.7 1019.1 31.1
SSA 228.6 0.01 214.4 12.8 189.0 26.4 189.0 26.4 214.4 12.8
NA/ME 87.1 7.35 50.5 16.4 47.6 16.8 47.6 16.8 50.5 16.4
Asia and Oceania 653.2 4.68 607.3 15.2 646.7 0 607.3 16.6 646.7 1.8
LAC and Caribbean 110.0 0.45 93.8 11.1 107.4 0.08 104.6 2.9 107.4 0.08
  1. a Population in countries with 2010 GDP (PPP) > US$ 20,000 are presumed to be at little or no risk of infection with any species of STH.
  2. b Stable transmission based upon region and species-specific climatic transmission limits.
  3. c Unstable transmission (median prevalence <2%) based upon region and species-specific climatic transmission limits.
  4. d Stable transmission of at ≥1 STH species.
  5. e Unstable transmission of at ≥1 STH species.