Table 2.
Factors Associated with Not Receiving Seven-Vaccine Series —National Immunization Survey—Child, United States, 2009–2018 (n=159,331)
| Characteristics | Odds ratio | Standard error | 95% CI |
|---|---|---|---|
| Survey year | |||
| 2009 | Reference | Reference | Reference |
| 2010 | 1.65 | 0.0406 | 1.53–1.79 |
| 2011 | 2.94 | 0.0421 | 2.71–3.20 |
| 2012 | 2.89 | 0.0441 | 2.65–3.15 |
| 2013 | 3.14 | 0.0470 | 2.86–3.44 |
| 2014 | 3.34 | 0.0471 | 3.04–3.66 |
| 2015 | 3.37 | 0.0453 | 3.08–3.68 |
| 2016 | 3.07 | 0.0479 | 2.80–3.38 |
| 2017 | 3.03 | 0.0468 | 2.76–3.32 |
| 2018 | 3.34 | 0.0502 | 3.03–3.68 |
| Age (years) | |||
| 19–23 months | 0.70 | 0.0263 | 0.66–0.73 |
| 24–29 months | 0.92 | 0.0262 | 0.88–0.97 |
| 30–35 months | Reference | Reference | Reference |
| Race/ethnicity | |||
| Hispanic | 1.22 | 0.0314 | 1.15–1.30 |
| Non-Hispanic white | Reference | Reference | Reference |
| Non-Hispanic black | 0.92 | 0.0348 | 0.86–0.98 |
| Non-Hispanic other | 1.04 | 0.0336 | 0.97–1.11 |
| Child was firstborn | |||
| No | Reference | Reference | Reference |
| Yes | 1.35 | 0.0229 | 1.29–1.41 |
| Poverty status | |||
| Above FPL (>$75,000) | Reference | Reference | Reference |
| Above FPL (up to $75,000) | 0.75 | 0.0294 | 0.71–0.80 |
| Below FPL | 0.70 | 0.0378 | 0.65–0.75 |
| Unknown | 0.77 | 0.0568 | 0.69–0.86 |
| Marital status of mother | |||
| Married | Reference | Reference | Reference |
| Never married/widowed/divorced/separated/deceased | 0.99 | 0.0284 | 0.94–1.05 |
| Education level of mother | |||
| <12 years | 0.73 | 0.0410 | 0.67–0.79 |
| 12 years | 0.85 | 0.0341 | 0.79–0.91 |
| >12 years, noncollege graduate | 0.89 | 0.0301 | 0.84–0.94 |
| College graduate | Reference | Reference | Reference |
| Mother's age (years) | |||
| ≤29 | 0.82 | 0.0252 | 0.78–0.86 |
| ≥30 | Reference | Reference | Reference |
| Census region | |||
| Northeast | 0.92 | 0.0260 | 0.88–0.97 |
| Midwest | 0.97 | 0.0239 | 0.92–1.01 |
| South | Reference | Reference | Reference |
| West | 0.88 | 0.0345 | 0.83–0.94 |