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Table 2 Frequency of intestinal infection in relation to stool consistency

From: Susceptibility to intestinal infection and diarrhoea in Zambian adults in relation to HIV status and CD4 count

Organism Formed Soft Loose Watery p trend
  n = 2194 n = 2230 n = 290 n = 17   
Cryptosporidium parvum 16 (0.8) 34 (1.5) 7 (2.4) 0 0.02 0.004
Isospora belli 8 (0.4) 4 (0.2) 7 (2.4) 1 (5.9) < 0.001 0.001
Microsporidia 3 3 1 0 ns  
Giardia intestinalis 16 (0.7) 33 (1.5) 9 (3.1) 2 (11.8) < 0.001 < 0.001
Blastocystis hominis 144 150 30 1 ns  
Entamoeba histolytica 11 8 0 0 ns  
Iodamoeba butschlii 108 (4.9) 53 (2.4) 8 (2.8) 0 < 0.001 < 0.001
Entamoeba hartmanii 35 25 2 0 ns  
Chilomastix mesnili 173 (7.9) 138 (6.2) 6 (2.1) 0 0.001 < 0.001
Ascaris lumbricoides 383 (17.5) 326 (14.6) 37 (12.8) 0 0.007 0.001
Hookworm 76 63 7 1 ns  
Strongyloides stercoralis 4 (0.2) 8 (0.4) 3 (1) 0 0.1 0.04
Schistosoma mansoni 11 10 2 0 ns  
Endolimax nana 212 (9.7) 143 (6.4) 11 (3.8) 0 < 0.001 < 0.001
Hymenolepis nana 16 12 0 0 ns  
Trichuris trichiura 1 6 0 0 ns  
Taenia saginata 3 6 2 0 ns  
Salmonella spp. 24 31 3 0 ns  
Shigella spp. 9 7 2 0 ns  
Aeromonas hydrophila 9 8 0 0 ns  
Citrobacter rodentium 417 406 61 3 ns  
Vibrio cholerae 3 2 1 0 ns  
  1. Percentages are shown in brackets where significant differences were found. 'P' was derived by Fisher's exact test across all groups, 'trend' refers to the P value using the χ2 for trend test to detect progressive changes in frequency with trends in consistency.
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