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Table 4 Intensity (eggs per gram) of infection by community proportion of households with latrines in use among children aged 6 to 15 years in Amhara Region, Ethiopia, 2011–2014

From: Association of community sanitation usage with soil-transmitted helminth infections among school-aged children in Amhara Region, Ethiopia

   Community sanitation usage    
   < 20% 20– < 40% 40– < 60% 60– < 80% ≥ 80% Total  
Infection Eggs/gram n % n % n % n % n % n % P a
Hookworm 0 1919 0.76 1536 0.83 1794 0.79 1975 0.77 1597 0.76 8821 0.78 0.47
1–49 490 0.22 254 0.17 359 0.20 410 0.21 377 0.23 1890 0.21  
50–99 24 0.01 3 0.00 10 0.01 18 0.01 18 0.01 73 0.01  
≥ 100 9 0.00 3 0.00 5 0.00 8 0.00 5 0.00 30 0.00  
T. trichiura 0 2382 0.97 1753 0.97 2069 0.96 2279 0.94 1858 0.93 10,341 0.96 < 0.01
1–49 55 0.02 41 0.03 93 0.04 129 0.06 133 0.07 451 0.04  
50–99 1 0.00 1 0.00 3 0.00 2 0.00 3 0.00 10 0.00  
≥ 100 4 0.00 1 0.00 3 0.00 1 0.00 3 0.00 12 0.00  
A. lumbricoides 0 2205 0.91 1510 0.84 1836 0.86 2024 0.84 1660 0.83 9235 0.86 0.13
1–49 175 0.07 193 0.11 215 0.09 272 0.11 220 0.11 1075 0.10  
50–99 33 0.01 43 0.02 59 0.02 57 0.02 57 0.03 249 0.02  
≥ 100 29 0.01 50 0.02 58 0.02 58 0.02 60 0.03 255 0.02  
  1. a P-values from Wald adjusted F-test for categorical variables