Table 2.

Factors associated with soil-transmitted helminth infections among schoolchildren in Abchikeli and Ayalew Mekonnen Elementary Schools, Durbete town, northwestern Ethiopia, February and March 2010.

Variables	Categories	Helminth infection		Crude OR [95% CI]	Adjusted OR [95% CI]
		Yes	No
Family size	1 to 3	97	110
	4–6	82	41	2.26 [1.43, 3.60]∗	1.73 [0.01, 2.95]∗
	≥7	32	22	1.65 [0.89, 3.02]	0.97 [0.46, 2.06]
Fathers education	Literate	96	86
	Illiterate	115	87	1.18 [0.79, 1.77]	0.57 [0.25, 1.31]
Mothers education	Literate	68	75
	Illiterate	143	98	1.61 [1.06, 2.44]∗	1.31 [0.54, 3.20]
Water sources	Tap	45	86
	Well	92	56	3.13 [1.92, 5.12]∗	4.40 [0.76, 25.64]
	River or spring	74	31	4.54 [2.59, 7.99]∗	6.25 [0.98, 39.77]
Hand washing	Yes	191	170
habit before eating	No	20	3	5.93 [1.73, 20.31]∗	3.80 [1.02, 14.23]∗
Shoe wearing	Yes	24	62
	No	187	111	4.35 [2.57, 7.36]∗	2.42 [1.05, 5.57]∗
Presence of latrine	Yes	54	97
	No	157	76	3.71 [2.41, 5.71]∗	4.39 [0.92, 20.94]
House floor	Cement	7	14
	Earthen	204	159	2.57 [1.01, 6.50]∗	4.13 [0.09, 195.52]
Residence	Urban	50	87
	Rural	161	86	3.26 [2.11, 5.03]∗	0.09 [0.01, 1.37]
Grade	1 to 3	150	129
	4 to 6	61	44	1.19 [0.76, 1.87]	0.28 [0.13, 0.58]∗
Religion	Muslim	9	9
	Christian	202	164	1.23 [0.48, 3.17]	0.41 [0.12, 1.38]
Sex	Male	95	77
	Female	116	96	0.97 [0.65, 1.46]	0.84 [0.52, 1.34]
Age group	5–9	76	99
	10–14	135	74	2.37 [1.57, 3.58]∗	2.79 [1.56, 5.01]∗

^∗ P < 0.05.