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Related Experiment Videos

Computer-generated recall letters for underimmunized children: how cost-effective?

T A Lieu1, S B Black, P Ray

  • 1Division of Research, Permanente Medical Group, Oakland, CA. tal@dor.kaiser.org

The Pediatric Infectious Disease Journal
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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Computer-generated recall letters increased immunization rates for children overdue for the measles-mumps-rubella (MMR) vaccine. While effective, the cost-effectiveness of this strategy requires further study compared to other methods.

Area of Science:

  • Public Health
  • Health Services Research
  • Pediatrics

Background:

  • Childhood immunizations are crucial for public health.
  • Ensuring timely vaccination coverage requires effective outreach strategies.
  • Computerized tracking systems facilitate identification of children due for immunizations.

Purpose of the Study:

  • To assess the effectiveness of computer-generated recall letters in increasing immunization rates.
  • To evaluate the cost-effectiveness of using recall letters for overdue immunizations.
  • To compare recall letters with other potential interventions in health maintenance organization (HMO) settings.

Main Methods:

  • A randomized controlled trial was conducted with 20-month-olds overdue for the measles-mumps-rubella (MMR) vaccine.

Related Experiment Videos

  • Parents were randomized to receive personalized recall letters or serve as a control group.
  • Immunization status was tracked via a computerized system, supplemented by telephone surveys for non-compliant cases.

    • Main Results:

    • Recall letters significantly increased MMR immunization rates by 24 months (54% vs. 35%, P = 0.001).
    • A significant proportion of parents (62%) were unaware that an immunization was due.
    • Cost-effectiveness analysis projected a modest increase in coverage from 86% to 90% at $4.04 per additional child immunized.

    Conclusions:

    • Computer-generated recall letters improve immunization rates for children overdue for vaccines.
    • The cost-effectiveness of recall letters may be lower than anticipated.
    • Further research should compare recall letters with alternative low-cost strategies like automated telephone reminders.