Ratio: Percent of children receiving four (4) or more doses diphtheria-tetanus-acellular pertussis (DTaP) vaccine by 19-35 months of age.
Definition: Percentage of young children who received effective vaccination coverage levels for universally recommended vaccines by a given age; diphtheria-tetanus-acellular pertussis (DTaP) vaccine by 19-35 months of age.
Data Source: National Immunization Survey, National Center for Health Statistics, U.S. Centers for Disease Control and Prevention