Prevalence and Intensity of Intestinal Helminth Infections in Preschool Pupils in Lugari Subcounty, Kakamega County, Kenya

Table 2

Association between different factors and prevalence of A. lumbricoides.

Variable	A. lumbricoides infection			Prevalence ratio
	Yes	No	Total	Ratio of infection	Ratio compared to the baseline group
Knowledge of washing hands before eating
No	6	7	13
Yes	10	107	117
Toilet at home
No	3	4	7
Yes	13	110	123
Knowledge of washing hands after visiting the toilet
No	10	27	37
Yes	6	87	93
Source of water
River	8	26	34
Many	1	6	7
Spring	1	10	11
Piped	1	8	9
Covered well	4	46	50
Uncovered well	1	17	18
Treatment of water for drinking
No	11	45	56
Yes	5	72	77
Deworming interval
12 months	6	19	25
Do not deworm	6	21	27
6 months	1	18	19
3 months	3	52	55
Pupils’ age
5	6	40	46
6	8	35	43
7	2	21	23
Pupils’ gender
Male	9	58	67
Female	7	56	63