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Overview of the sampling design and statistical methods used in the National Immunization Survey

P J Smith1, M P Battaglia, V J Huggins

  • 1National Immunization Program, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. pzs6@cdc.gov

American Journal of Preventive Medicine
|May 2, 2001
PubMed

Insights

The National Immunization Survey (NIS) estimates child vaccination coverage in the US. In 1999, it collected vaccination histories for over 22,000 children aged 19-35 months.

Area of Science:

  • Public Health
  • Epidemiology
  • Biostatistics

Background:

  • Childhood vaccination is crucial for disease prevention.
  • Accurate vaccination coverage data is essential for public health planning.
  • The National Immunization Survey (NIS) provides vital statistics on immunization rates.

Purpose of the Study:

  • To estimate vaccination coverage rates for US children aged 19-35 months.
  • To provide timely data on immunization status for public health interventions.
  • To assess the effectiveness of vaccination programs.

Main Methods:

  • Utilized the National Immunization Survey (NIS) methodology.
  • Conducted extensive telephone call attempts (over 8 million).
  • Collected provider-reported vaccination histories for a representative sample of children.

Main Results:

  • Gathered vaccination data for 22,521 children aged 19-35 months in 1999.
  • Established baseline vaccination coverage rates for the target age group.
  • Identified key data points for public health monitoring.

Conclusions:

  • The NIS is a valuable tool for monitoring childhood vaccination coverage.
  • Provider-reported data offers a reliable method for assessing immunization status.
  • Findings support ongoing efforts to maintain high vaccination rates in children.

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