Table 2.

Prevalence of intestinal parasitic infections among school children in relation to explanatory variables.

Characteristics	Options	Examined	Positive	Negative	Ratio	Odds ratio
Sex	Male	197	130	67	1.94	1.05
	Female	199	129	70	1.84	1
Age (years)	7–10	60	36	30	1.2	1.14
	11–14	93	44	49	0.89	1
	15–16	84	60	24	2.5	2.8
	≥17	159	119	140	0.85	0.95
Residence	Rural	221	159	62	2.56	1.92
	Urban	175	100	75	1.33	1
Education (grade level)	1–4	88	50	38	1.3	0.8
	5–8	109	56	53	1.05	1
	9–10	199	153	46	3.32	3.16
Father's education level	Illiterate	269	185	84	2.2	2.75
	Church	31	20	11	1.8	2.25
	Primary	74	44	30	1.5	1.87
	Secondary	13	6	7	0.85	1.06
	College and above	9	4	5	0.8	1
Father's occupation	Farming	290	198	92	2.15	1.59
	Nonfarming	106	61	45	1.35	1
Water source	Tap	150	74	76	0.97	1
	River	58	51	7	7.28	7.5
	Both	188	134	54	2.48	2.5
Wealth status	Very poor	11	10	1	10	5.2
	Poor	32	19	13	1.46	0.7
	Middle income	295	192	103	1.86	0.97
	Rich	58	38	20	1.9	1
Family size (#)	≥7	75	45	30	1.5	0.78
	6	115	82	33	2.48	1.3
	5	116	73	43	1.6	0.84
	<5	90	59	31	1.9	1
Hand washing after toilet	Yes	365	235	130	1.8	1
	No	31	24	7	3.42	1.9
Washing vegetables	Yes	309	207	102	2.03	1
	No	87	52	35	1.48	0.73
Eating raw meat	Yes	183	111	72	1.54	0.67
	No	213	148	65	2.27	1
Shoe wearing habit	Not at all	25	25	0	—	—
	Sometimes	28	25	3	8.33	5.33
	Always	343	209	134	1.55	1
Waste disposal	Buried	326	208	118	1.76	1
	Open space	70	51	20	2.55	1.44
Type of latrine used by the family	Private	366	236	130	1.8	1
	Common	12	9	3	3	1.66
	Open space	18	14	4	3.5	1.94
Cleanliness of fingernails	Clean	258	162	96	1.68	1
	Not clean	138	97	41	2.36	1.4