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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)

From: Gender-specific determinants of asthma among U.S. adults

  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)**
  1. *p < 0.05, **p < 0.001