Table 2.
Multivariable logistic regression of receiving influenza vaccination within past 3 years.
| Variable | OR | 95% CI | P |
|---|---|---|---|
| MMR vaccine series completion | |||
| Did not initiate series | 0.68 | 0.64, 0.72 | <.001 |
| Initiated series but not up-to-date | 0.46 | 0.43, 0.50 | <.001 |
| Up-to-date on MMR series | (Ref.) | ||
| Age | 0.91 | 0.90, 0.92 | <.001 |
| Female | 1.02 | 1.00, 1.05 | .047 |
| Race and ethnicity | |||
| Hispanic | 1.35 | 1.30, 1.39 | <.001 |
| Non-hispanic white | (Ref.) | ||
| Non-hispanic black | 1.01 | 0.97, 1.06 | .495 |
| Other | 1.34 | 1.29, 1.39 | <.001 |
| Mother’s age | |||
| ≤34 years | (Ref.) | ||
| 35–44 years | 1.03 | 0.99, 1.08 | .147 |
| ≥45 years | 1.14 | 1.09, 1.19 | <.001 |
| Mother’s education | |||
| <12 years | (Ref.) | ||
| 12 years | 0.80 | 0.76, 0.84 | <.001 |
| >12 years (no college degree) | 0.80 | 0.76, 0.84 | <.001 |
| College degree | 1.00 | 0.96, 1.05 | .881 |
| Mother not married | 0.97 | 0.94, 1.00 | .027 |
| Annual household income | |||
| Above poverty, >$75,000 | (Ref.) | ||
| Above poverty, ≤$75,000 | 0.79 | 0.77, 0.81 | <.001 |
| Below poverty line | 0.94 | 0.90, 0.98 | .005 |
| Health insurance coverage | |||
| Private | (Ref.) | ||
| Medicaid | 1.23 | 1.19, 1.27 | <.001 |
| Other | 0.96 | 0.91, 1.01 | .091 |
| None | 0.69 | 0.65, 0.73 | <.001 |
| Facilities where adolescent received vaccinations | |||
| Public clinics | (Ref.) | ||
| Hospital clinics | 1.53 | 1.46, 1.60 | <.001 |
| Private clinics | 1.34 | 1.29, 1.39 | <.001 |
| School or other clinics | 1.39 | 1.29, 1.49 | <.001 |
| Multiple facility types | 1.72 | 1.66, 1.79 | <.001 |
| Years since last well-child visit | 0.89 | 0.88, 0.90 | <.001 |
CI, confidence interval; MMR, measles, mumps, rubella; OR, odds ratio.