Table 3.

Association of risk factors with diarrhea of children in Cochabamba, Bolivia

	Non-filter group			Filter group
	N	Diarrhea prevalence	Diarrhea prevalence ratio	N	Diarrhea prevalence	Diarrhea prevalence ratio
	Socioeconomic factors
Child gender (%)
Female	230	39%		225	13%
Male	254	40%	1.03 (0.94, 1.12)	243	14%	1.11 (1.01, 1.27)
Primary language spoken by household
Aymara	12	42%	1.11 (0.97, 1.19)	17	17%	1.27 (0.52, 2.52)
Spanish	248	38%		228	13%
Quecha	224	41%	1.06 (0.96, 1.17)	223	14%	1.01 (0.85, 1.29)
Main source of drinking water
Tanker truck	425	40%		409	14%
Water coolers	42	36%	0.91 (0.72, 0.97)	29	12%	0.87 (0.40, 1.42)
Other	17	40%	1.00 (0.72, 1.68)	30	14%	1.05 (0.22, 1.81)
Caregiver years of education
None	42	38%		60	17%
1–5 Years	165	42%	1.11 (0.93, 1.34)	117	14%	0.84 (0.67, 1.13)
5–10 Years	145	36%	0.96 (0.88, 1.11)	147	12%	0.72 (0.53, 0.97)
Greater than 10 Years	132	40%	1.04 (0.88, 1.28)	144	14%	0.85 (0.53, 1.16)
	Knowledge factors
What are the different ways that a person can prevent diarrhea? (Open-ended with multiple responses allowed)
Hand washing (soap not mentioned)
Yes	57	36%		26	11%
Not mentioned	99	41%	1.15 (1.04, 1.22)	124	13%	1.18 (0.96, 1.47)
Hand washing (soap mentioned)
Yes	24	34%		32	10%
Not mentioned	132	40%	1.19 (0.93, 1.61)	118	13%	1.28 (0.71, 2.94)
Water treatment
Yes	33	41%		62	12%
Not mentioned	123	39%	0.94 (0.74, 1.18)	88	13%	1.16 (0.78, 1.54)
Proper disposal of feces/use of latrines
Yes	11	37%		12	8%
Not mentioned	145	40%	1.08 (0.74, 1.75)	138	13%	1.64 (1.08, 3.13)
Proper food storage
Yes	26	38%		27	9%
Not mentioned	130	40%	1.05 (0.91, 1.59)	123	14%	1.59 (0.89, 3.03)
Proper food preparation
Yes	63	35%		66	11%
Not mentioned	93	42%	1.20 (1.06, 1.39)	84	14%	1.32 (1.02, 1.96)