Table 7.

Crude and adjusted OR in the logistic regression model

Risk factors	Crude OR	CI 95%	P value	Adjusted OR	CI 95%	P value
Gender
Male	1	–	–	1	–	–
Female	0.68	0.39–1.2	0.176	1.58	0.81–3.06	0.18
Age group
16–30 years old	1	–	–	1	–	–
31–45 years old	0.311	0.15–0.65	0.002	0.43	0.19–0.95	0.038
46–60 years old	0.284	0.13–0.63	0.002	0.38	0.15–0.91	0.031
Above 60 years old	0.021	0.003–0.16	< 0.001	0.05	0.01–0.39	0.005
Education
High school and lower	1	–	–	–	–	–
College and higher	2.48	1.4–4.4	0.002
Marital status
Single	1	–	–	–	–	–
Married	0.24	0.12–0.48	< 0.001
Occupation
Office workers	1	–	–	–	–	–
Farmer	0.38	0.12–1.24	0.11
Pupil/Student	2.77	1.19–6.43	0.018
Unemployed	0.15	0.03–0.75	0.021
Retired	0.13	0.03–0.64	0.012
Other	1.4	0.63–3.1	0.4
Average income	1.1	1.04–1.17	< 0.001	–	–	–
Having chronic diseases
Yes	1	–	–	–	–	–
No	0.38	0.17–0.84	0.017
Living district
Central urban	1	–	–	1	–	–
Peripheral	1.26	0.64–2.47	0.49	1.35	0.64–2.84	0.43
Peri-urban	0.2	0.09–0.44	< 0.001	0.31	0.13–0.75	0.01
Area of living	0.99	0.99–1	0.074	–	–	–
Livestock keeping
Yes	1	–	–	–	–	–
No	0.41	0.1–1.65	0.21
Storing water in the tank without lid
Yes	1	–	–	–	–	–
No	0.32	0.06–1.6	0.166
Storing water in the buckets/barrels
Yes	1	–	–	–	–	–
No	0.74	0.3–1.8	0.5
Knowledge score	1.21	1.09–1.35	< 0.001	1.1	0.97–1.26	0.15
Attitude score	1.47	1.15–1.89	0.002	1.15	0.82–1.6	0.42
Practice score	1.05	0.94–1.18	0.415	0.97	0.84–1.13	0.71

* Using unweighted score, the final model identified the same independent variables as significant with unchanged adjusted OR