Table 3.
Results of the multilevel logistic regression models, the second model adjusted for interactions
| Variable | Model 1 Adjusted OR (95% CI) | Model 2 Adjusted OR (95% CI) |
|---|---|---|
| County-level proportion uninsured (per 5%) | 0.95 (0.93–0.97) | 0.99 (0.97–1.02) |
| Race/Hispanic ethnicity | ||
| African American, nonHispanic | 1.32 (1.24–1.42) | 1.06 (0.73–1.55) |
| Other, nonHispanic | 0.43 (0.39–0.47) | 1.00 (0.62–1.61) |
| Hispanic | 1.29 (1.20–1.38) | 1.59 (0.74–3.40) |
| White, nonHispanic | 1.00 | 1.00 |
| Household income | ||
| <$25,000 | 1.00 | 1.00 |
| $25,000–$49,999 | 1.26 (1.19–1.33) | 1.50 (1.13–1.99) |
| $50,000–$74,999 | 1.43 (1.33–1.54) | 2.21 (1.66–2.96) |
| ≥$75,000 | 1.93 (1.79–2.08) | 1.95 (1.57–3.98) |
| Unknown | 1.42 (1.33–1.51) | 1.27 (0.85–1.88) |
| Health insurance coverage | ||
| No | 0.42 (0.39–0.46) | 0.42 (0.33–0.53) |
| Yes | 1.00 | 1.00 |
| Education | ||
| 8th grade or less | 0.64 (0.58–0.70) | 0.63 (0.51–0.78) |
| 9th–11th grade | 0.75 (0.69–0.81) | 0.72 (0.61–0.85) |
| At least 12th grade | 1.00 | 1.00 |
| Age (years) | ||
| 40-49 | 0.66 (0.69–0.62) | 0.65 (0.61–0.69) |
| 50-59 | 1.00 | 1.00 |
| 60-69 | 0.94 (0.88–1.01) | 0.93 (0.85–1.01) |
| 70 and older | 0.72 (0.67–0.76) | 0.70 (0.58–0.86) |
| Cost as barrier to medical care | ||
| Yes | 0.65 (0.61–0.70) | 0.65 (0.54–0.79) |
| No | 1.00 | 1.00 |
| Daily or occasional smoker | ||
| Yes | 0.75 (0.71–0.79) | 0.75 (0.63–0.89) |
| Never smoked | 1.00 | 1.00 |
| County-level proportion of uninsured (per 5%)—race interaction | ||
| African American, nonHispanic | 1.06 (1.03–1.10) | |
| Other, nonHispanic | 0.79 (0.76–0.81) | |
| Hispanic | 0.94 (0.89–0.98) | |
| White, nonHispanic | 1.00 | |
| County-level proportion of uninsured (per 5%)—household income interaction | ||
| <$25,000 | 1.00 | |
| $25,000–$49,999 | 0.94 (0.93–0.96 | |
| $50,000–$74,999 | 0.87 (0.86–0.89) | |
| ≥$75,000 | 1.00 (0.99–1.01) | |
| Akaike Information Criterion | 56881 | 56814 |
OR, odds ratio; CI, confidence interval.