Table 4.

Multivariable analysis of predictors of West Nile virus infection—East Valley of metropolitan Phoenix, Arizona, May 25–July 31, 2010

Risk factor	OR*	[95% CI]	aOR	[95% CI]
Lives in or near Water District X within Gilbert	5.0	[1.6–15.1]	5.2	[1.5–18.1]
Water-holding containers in yard	4.0	[1.5–11.1]	5.0	[1.5–17.3]
Does not work or attend school outside the home	2.6	[1.2–5.4]	2.4	[1.1–5.5]

^*Crude OR for water-holding containers in yard based on 5 complete datasets with imputed data; thus it differs slightly than the ORs that would be generated from the data presented in Table 3 where only observed data are presented.

OR = odds ratio; aOR = adjusted odds ratio; CI = confidence interval.