TABLE 2.

Precaution Adoption of Intervention and Control Groups at 3 Months: Household Environmental Health Intervention Delivered by Rural Public Health Nurses, Gallatin County, MT, and Whatcom County, WA, 2009

EH Measurea	Intervention Group, No. (%)	Control, No. (%)	Group Effect, OR (95% CI)	Pbc
General EH precaution adoptiond
≥3 EH risks	83 (69.8)	44 (37.9)	3.9 (2.2, 6.7)	< .001
EH risk-specific precaution adoption
Radonf	70 (58.8)	55 (47.4)	2.4 (1.1, 5.2)	.03
Carbon monoxide	61 (51.3)	35 (30.2)	2.4 (1.4, 4.2)	.001
Lead	73 (61.3)	40 (34.5)	3.0 (1.8, 5.1)	< .001
Water contaminants	71 (59.7)	53 (45.7)	1.8 (1.1, 2.9)	.03
In-wall humidity	74 (62.2)	46 (39.7)	2.5 (1.5, 4.2)	.006
Secondhand smoke	29 (24.4)	23 (19.8)	1.3 (0.7, 2.4)	.4

Note. CI = confidence interval; EH = environmental health; OR = odds ratio.

^aValues are numbers (%) for precaution adoption at 3 months by EH measure. Precaution adoption at 3 months is defined as movement forward from the baseline stage by at least 1 step in the stages of the precaution adoption process model.

^bFull model including main effects for group, education (years), household income ($5000 increments), study site, and all corresponding interactions was evaluated. Group effect (OR [exp(b)]) reported is based on reduced model, such that effects are adjusted for any statistically significant confounders and interactions. Income and education were not associated with precaution adoption for any EH risk.

^cOR, CI, and χ² P value from logistic generalized estimating equations model.

^dGeneral EH precaution adoption is defined as ≥3 EH risks with precaution adoption.

^eThe number and percentage of participants with precaution adoption for each EH subscale is reported.

^fGallatin County participants showed an increased odds of precaution adoption for radon (OR = 3.0; 95% CI = 1.4,6.5; P = .004).