Figure 2.

Percentage of 13- to 17-year-old unvaccinated adolescents, by independent factors associated with being unvaccinated determined from the multivariable recursive partitioning^a analysis, 2010 NIS-Teen

^aRecursive partitioning is a multivariable statistical method that creates a decision tree that attempts to classify members of the population based on several independent variables.

^bn = unweighted sample size associated with the listed percentage

^cGroup 1 consists of adolescents who were either non-Hispanic white, American Indian/Alaska Native, or non-Hispanic Asian.

^dGroup 2 consists of adolescents who were either Hispanic, non-Hispanic black, or of another race/ethnicity and lived in a household with an annual income in the first, fourth, or fifth income quintile.

^eGroup 3 consists of adolescents who were either Hispanic, non-Hispanic black, or of another race/ethnicity and lived in a household with an annual income in the second or third income quintile.