Table 5. Association of demographic factors with physical inactivity.

Demographic Factors	OR (95% CI)
Age *
18–24 years	Referent
25–34 years	1.51 (1.36, 1.67)
35–44 years	1.72 (1.55,1.91)
45–54 years	1.74 (1.57, 1.92)
55–64 years	1.82 (1.64, 2.01)
≥65 years	2.00 (1.80, 2.21)
Sex *
Male	Referent
Female	1.15 (1.10, 1.19)
Race/Ethnicity *
White/non-Hispanic	Referent
Black/non-Hispanic	1.19 (1.13, 1.27)
Hispanic	1.22 (1.14, 1.30)
Asian/Pacific Islander	1.80 (1.58.2.05)
American Indian	0.92 (0.79, 1.07)
Multi/Other	0.91 (0.80, 1.03)
Educational Level *
Not graduated from high school	Referent
High school graduate	0.84 (0.79, 0.90)
Attended college	0.62 (0.58, 0.66)
College graduate or higher	0.42 (0.39, 0.45)
Annual Income Level *
<$25,000	Referent
≥$25,000 to <$50,000	0.96 (0.91, 1.00)
≥$50,000	0.72 (0.69, 0.76)
Marital Status
Married/partnered	Referent
Divorced/widowed/separated	1.02 (0.98, 1.06)
Never married	0.97 (0.92, 1.03)

Adjusted for all above variables in the table and all three air pollution variables.

*Joint adjusted Wald test p-value <0.0001.