Table 3.

Comparison of the odds ratio of diarrhea risk between drinking intermediate-depth tubewell and shallow tubewell water

Comparison	Control variables	n	OR	95%CI		p
Intermediate-depth wells vs. shallow wells	Unstratified	45600	1.24	1.19	1.29	< 0.001
	Flood control
	Yes	17926	1.43	1.33	1.53	< 0.001
	No	33480	1.15	1.09	1.21	< 0.001
	Population density
	Low	13157	1.25	1.16	1.36	< 0.001
	Medium	15191	1.22	1.14	1.31	< 0.001
	High	17252	1.25	1.17	1.33	< 0.001
	Wealth
	Low	2510	1.13	0.94	1.35	0.197
	Low medium	11991	1.28	1.18	1.38	< 0.001
	Medium	19605	1.29	1.22	1.37	< 0.001
	High medium	9172	1.22	1.12	1.34	< 0.001
	High	1697	1.26	0.99	1.59	0.056
	Education
	< 1 year	3513	1.21	1.04	1.42	0.017
	1-3 years	11417	1.20	1.11	1.30	< 0.001
	3-5 years	16639	1.33	1.25	1.43	< 0.001
	5-7 years	9895	1.25	1.14	1.36	< 0.001
	≥ 7 years	4136	1.28	1.11	1.48	0.001
	Year
	2000	6279	1.30	1.17	1.44	< 0.001
	2001	6436	1.30	1.17	1.45	< 0.001
	2002	6540	1.15	1.03	1.28	0.011
	2003	6597	1.17	1.05	1.30	< 0.004
	2004	6641	1.16	1.05	1.29	0.005
	2005	6590	1.35	1.21	1.50	0.001
	2006	6517	1.34	1.20	1.50	0.001
	Children age
	0-12 months	2639	1.03	0.82	1.31	0.775
	13-24 months	3198	1.18	1.01	1.38	0.036
	25-36 months	3605	1.34	1.15	1.56	< 0.001
	37-48 months	3486	1.39	1.18	1.63	< 0.001
	49-60 months	3015	1.11	0.91	1.35	0.300

Baris drinking shallow tubewell water are the referent group. Univariate logistic regressions were used.