Table 2.

Bivariable analyses of the percentage of children unvaccinated against measles, by demographic characteristic and age group, in the United States: 2011 NIS (quarters 1–4) and 2010 NIS-Teen (quarters 3–4)

*Estimated percentage is significantly different from the estimated percentage in the same row among unvaccinated respondents in the selected age group, p<0.001.

**Estimated percentage is significantly different from the estimated percentage in the same row among unvaccinated respondents in the selected age group, 0.001≤p<0.01.

***Estimated percentage is significantly different from the estimated percentage in the same row among unvaccinated respondents in the selected age group, 0.01≤p<0.05.

^aVFC entitlement status is based on parental report that their child/adolescent is either eligible for Medicaid, not covered by health insurance, American Indian/Alaska Native, or covered by private health insurance that does not cover all of the cost of vaccines and administered doses at a Federally Qualified Health Center or Rural Health Center.

^bParental report of health insurance status and health insurance type is among the childhood/adolescent characteristics collected in the telephone interview of the NIS and NIS-Teen.

^cUnderinsured children are reported by their parents to be covered by private health insurance that does not cover all of the cost of all recommended vaccines.

^dIncludes both Hispanic and non-Hispanic American Indian/Alaska Natives

NIS = National Immunization Survey

CI = confidence interval

VFC = Vaccines for Children program

MSA = metropolitan statistical area