Table 2. Univariate and multivariate odds ratios and p value for awareness and current use of WaterGuard*.

Predictor variable	Total	No. (%)	Crude OR (95% CI)†‡	Adjusted OR (95% CI)§	p value¶
Have heard of WaterGuard
Urban population	156	147 (94.2)	9.87 (5.46–17.85)	3.92 (2.26–6.78)	<0.001
Mother attended school	909	713 (78.4)	3.75 (2.59–5.42)	2.84 (2.00–4.05)	<0.001
Husband attended school	1,072	776 (72.4)	2.89 (2.22–3.78)	1.90 (1.45–2.49)	<0.001
Higher wealth quintile	608	471 (77.5)	2.54 (1.69–3.80)	1.97 (1.41–2.74)	0.0003
Region
Central	723	461 (63.8)	1.15 (0.47–2.80)	NS
South	708	484 (68.4)	1.41 (0.63–3.14)	NS
Mother employed	74	59 (79.7)	2.15 (1.03–4.50)	NS
Improved drinking water	1,106	718 (64.9)	0.95 (0.61–1.47)	NS
Currently using WaterGuard
Urban population	144	34 (23.6)	2.86 (1.55–5.28)	2.01 (1.06–3.82)	0.0342
Region
Central	456	67 (14.7)	3.36 (1.60–7.05)	1.88 (0.93–3.78)	0.1981
South	481	50 (10.4)	2.26 (0.96–5.31)	1.49 (0.60–3.70)	0.1981
Mother employed	58	13 (22.4)	2.22 (1.06–4.67)	1.67 (0.83–3.39)	0.1465
Higher wealth quintile	465	72 (15.5)	1.87 (1.08–3.23)	1.42 (0.84–2.42)	0.1866
Mother attended school	709	91 (12.8)	1.45 (0.69–3.01)	NS
Husband attended school	771	93 (12.1)	1.22 (0.67–2.21)	NS
Improved drinking water	712	87 (12.2)	1.22 (0.46–3.21)	NS

*OR, odds ratio; CI, confidence interval; NS, variable did not meet criterion for remaining in the multivariate model.
†OR >1 for region central or region south indicates a higher probability than the north region.
‡OR >1 for higher quintile (4 and 5) indicates a higher probability than those in the lower quintile (1, 2, and 3).
§Predictor variables with a p = 0.10 in univariate analysis were included in the multivariate model to adjust for these simultaneously.
¶p value for Wald F statistic for the adjusted OR.