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Table 4

Association between absence of insect screen on vent pipe and user encounter with flies

User groupUsers who saw fliesUsers who saw no fliesTotalOdds ratio (p-value)
Latrines with vent pipes without insect screens 66 62 128 2.129 (0.008)* 
Latrines with vent pipes fitted with insect screens 26 52 78 
Total 92 114 206 
User groupUsers who saw fliesUsers who saw no fliesTotalOdds ratio (p-value)
Latrines with vent pipes without insect screens 66 62 128 2.129 (0.008)* 
Latrines with vent pipes fitted with insect screens 26 52 78 
Total 92 114 206 

*significant at 1% confidence level.

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