Table 2. Race-Adjusted Odds (95% confidence interval [CI]) of Influenza Vaccination.
| Odds Ratio (95% CI) | Reference Category | |
|---|---|---|
| Race/Ethnicity—Black | 0.57 (0.56, 0.58) | White |
| Age (per 10 years) | 1.45 (1.44, 1.46) | — |
| Female | 1.17 (1.14, 1.19) | Male |
| Service area | ||
| Greater Baltimore area | 1.19 (1.15, 1.23) | Northern Virginia |
| District of Columbia | 0.98 (0.95, 1.02) | Northern Virginia |
| Suburban Maryland | 1.02 (1.00, 1.05) | Northern Virginia |
| Current smoker | 0.76 (0.73, 0.79) | Non-current smoker |
| Registered on KP patient portal | 1.57 (1.53, 1.60) | Not registered on KP.org |
| Neighborhood median income (per $10,000) | 1.03 (1.02, 1.03) | — |
| Miles to nearest medical center (per mile) | 0.98 (0.98, 0.98) | — |
| CCI = 1 | 1.59 (1.55, 1.63) | CCI = 0 |
| CCI ≥ 2 | 2.21 (2.15, 2.28) | CCI = 0 |
| Discordant Patient/provider race | 1.07 (1.05, 1.09) | Concordant Patient/provider race |
KPMAS = Kaiser Permanente Mid-Atlantic States; CCI = Charlson Comorbidity Index