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Assessing the ability of an immunization information system to prevent overimmunization of pediatric influenza

Cristi A Carlton1, Rachel C Potter, Patricia A Vranesich

  • 1Michigan Department of Community Health, Lansing.

Journal of Public Health Management and Practice : JPHMP
|August 2, 2014
PubMed

Insights

Using immunization information systems (IIS) like MCIR can prevent overvaccination in children. This study shows MCIR

Area of Science:

  • Public Health
  • Immunization Practices
  • Health Informatics

Background:

  • The Advisory Committee on Immunization Practices (ACIP) provides annual influenza vaccine recommendations.
  • ACIP offered two distinct approaches for determining 2-dose influenza vaccination for children aged 6 months to 8 years between 2011 and 2013.
  • One approach disregarded prior vaccination history, while the other utilized complete immunization records, often found in immunization information systems (IIS).

Purpose of the Study:

  • To compare the number of children recommended for two influenza vaccine doses under each ACIP approach.
  • To assess the potential for influenza vaccine over-immunization in Michigan children.
  • To evaluate the impact of using the Michigan Care Improvement Registry (MCIR) in preventing over-immunization.

Main Methods:

  • Cross-sectional analysis of influenza seasons from 2011-2012 to 2013-2014.
  • Utilized MCIR data, including seasonal influenza and 2009 H1N1 monovalent vaccine doses.
  • Analyzed data for over 900,000 children aged 6 months to 8 years per season.

Main Results:

  • The study identified significant numbers of children potentially receiving unnecessary second influenza vaccine doses.
  • MCIR usage could have prevented over-immunization for 70,323 children in 2011-2012, 126,076 in 2012-2013, and 81,635 in 2013-2014.
  • Quantified the difference in 2-dose recommendations between the two ACIP approaches.

Conclusions:

  • This is the first study to use an IIS to quantify differences in ACIP's 2-dose influenza vaccine recommendations.
  • MCIR's comprehensive immunization history and forecasting minimize over-immunization and offer cost-saving potential.
  • Highlights the value of centralized IIS data for providers, public health, and caregivers.
Abstract

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