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Published on: August 7, 2017
Determining immunization rates for inner-city infants: statewide registry data vs medical record review
C J Stille1, J Christison-Lagay
1University of Connecticut School of Medicine, Farmington, USA. stillec@ummhc.org
Insights
Consulting a statewide immunization registry accurately identifies vaccination status in inner-city infants. This improves tracking of immunization rates for mobile populations.
Area of Science:
- Pediatrics
- Public Health
- Health Informatics
Background:
- Inner-city infants often have complex immunization histories due to mobility.
- Single-site chart reviews may inaccurately suggest delayed vaccinations.
Purpose of the Study:
- To evaluate the utility of a statewide immunization registry.
- To determine the accuracy of immunization status assessment in inner-city infants.
Main Methods:
- Prospective enrollment of 315 newborns in three inner-city pediatric clinics.
- Collection of immunization data from clinic charts and the state registry at 7 months of age.
Main Results:
- Chart review initially indicated 47% of infants had delayed immunizations.
- Registry data corrected this, showing 19% had received additional immunizations and 10% were up-to-date.
Conclusions:
- Statewide registries enhance the accuracy of immunization rate determination.
- Registries are crucial for tracking immunizations in mobile, inner-city populations.
Objective:
This study evaluated the benefit of consulting a statewide immunization registry for inner-city infants whose immunizations appeared, after single-site chart review, to have been delayed.
Methods:
We prospectively enrolled 315 newborns in 3 inner-city pediatric clinics. When the infants turned 7 months old, we obtained immunization data from clinic charts and the state registry.
Results:
On the basis of chart review, 147 infants (47%) were assessed to be delayed in their immunizations; of these, registry data revealed that 28 (19%) had received additional immunizations and 15 (10%) were actually up to date.
Conclusions:
A statewide registry can capture immunizations from multiple sources, improving accurate determination of immunization rates in a mobile, inner-city population.
