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Table 2 Risk factors for E. histolytica infection in Hanam province, Vietnam (multivariable conditional logistic regression analysis).

From: Risk factors for Entamoeba histolytica infection in an agricultural community in Hanam province, Vietnam

Risk factors Matched OR 95% CI P-value
Household's socioeconomic status (versus good)    
   - average 4.3 1.3-14.0 0.02
   - poor 2.2 0.6-7.4 0.22
Household's sanitary conditions (versus good)    
   - average 0.8 0.3-2.3 0.68
   - poor 1.6 0.6-4.6 0.38
Household with tap water (yes versus no) 1.3 0.5-3.1 0.57
Close contact with domestic animals in household (yes versus no) 5.9 1.9-18.9 0.003
Handling animal excreta in field work (yes versus no) 0.2 0.1-0.7 0.01
Direct contact with Nhue river water during field work (yes versus no) 0.4 0.1-1.1 0.07
Use of Nhue river water to irrigate fields (yes versus no) 3.7 0.4-33.1 0.24
Washing hands with soap after field work (versus frequently)    
   - sometimes 1.7 0.5-5.8 0.40
   - rarely 3.4 1.1-10.0 0.03