Risk factors   Intestinal parasites COR(CI) AOR(CI) P value
     positive negative      
Grade level 1-4 113(20.9%) 35(6.5%) 1.00    
5-8 343(63.4%) 50(9.2%)  .47(0.29,0.76) 0.38(0.22,0.58) 0.021
Water supply Pipe water 243(44.9%) 14(2.5%) 1.00    
Spring/pond 111(20.5%) 31(5.7%) 4.85(3.31,7.22) 3.58(2.19,6.75)  
River 102(18.9%) 40(7.5%) 6.81(5.16,8.99) 4.38(3.14,7.93) 0.005
Antihelminthic < 6 monthes Yes 265(48.9%) 22(4.1%) 1.00    
No 191(35.4%) 63(11.6%) 3.97(1.89,6.83) 2.87(.85,4.45) 0.351
Shoe wore During interview Yes 219(40.5%) 28(5.1%) 1.00    
no 237(43.8%) 57(10.6%) 1.88(1.12,4.42) 1.38(1.15,3.12) 0.005
Swimming in the river or pond Yes 157(29.0%) 19(3.5%) 1.82(1.06,3.15) 1.35(0.78,2.78) 0.092
No 299(55.3%) 66(12.2%) 1.00    
Table 3: Bivariate and multivariate logistic regression analysis for factors associated with Intestinal parasite infection among Debre Elias Woreda school children, March, 2013.