Table 3.

Factors Associated with Asthma Prevalence in BRFSS Univariate Analyses. Crude odds ratios (ORs) were derived from unadjusted survey logistic regression models with asthma as the outcome. Shown are ORs and 95% confidence intervals (CIs)

	Crude ORs (N =1,003,894)
Gender
Male	Reference
Female	1.80 (1.74, 1.86)**
Race/Ethnicity
White	Reference
Black	1.18 (1.13, 1.23)**
American Indian/Alaskan Native	1.64 (1.42, 1.90)**
Asian/Pacific Islander	0.59 (0.53, 0.65)**
Hispanic	0.72 (0.69, 0.76)**
Education level
Less than high school	0.76 (0.69, 0.84)**
High school	1.07 (1.04, 1.10)**
Some college or more	Reference
Yearly Household income (USD)
< $25,000	1.60 (1.54, 1.66)**
$25,000-$75,000	1.14 (1.10, 1.18)**
≥ $75,000	Reference
Body Mass Index (BMI)
Not overweight or obese	Reference
Overweight	1.07 (1.03, 1.11)**
Grade 1 obese	1.45 (1.39, 1.51)**
Grade 2 obese	2.11 (2.00, 2.23)**
Grade 3 obese	3.30 (3.11, 3.50)**
Smoking status
Never smoked	Reference
Former smoker	1.17 (1.13, 1.20)**
Current smoker	1.32 (1.27, 1.37)**
Age
10 years	0.98 (0.97, 0.99)**

*p < 0.05, **p < 0.001