Minimum time interval adjustment for 4-3-1 immunization rates among two- year-old children

R. Prasaad Steiner, Judith A. Hughes, Terry L. Richardson, Stephen Warwick Looney, Richard D. Clover, Melinda G. Rowe

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Background: The purpose is to determine the administrative validity of the 4-8-1 immunization rates for DPT-OPV-MMR vaccines for 2-year-old children in a community health status assessment project by accounting for premature administration of specific vaccine doses according to ACIP recommended minimal timing intervals. Methods: A retrospective survey of immunization certificates was made on a random sample of 1,059 kindergarten enrollees in the county, including public, private, and parochial schools. The immunization rates by the crude 4-3-1 counting method were compared with the same method adjusted for minimal time interval vaccine dosing. Results: By the crude 4-3-1 counting method, 55.5% of the students had complete immunizations by their second birthdate, and 11.8% did not meet the minimum interval recommendations on at least one of 4-3-1 vaccine series. The adjustment for minimum time interval reduced the percent in compliance with the 4-3-1 counting method by age 2 in the community to 50.7%. Conclusion: The premature timing of vaccine doses is a threat to the validity of the 4-3-1 counting method. The crude 4-3-1 method over-estimates the completed immunization rates for 2-year-olds in this community-based study by about 4.8%.

Original languageEnglish (US)
Pages (from-to)189-194
Number of pages6
JournalAmerican Journal of Preventive Medicine
Volume16
Issue number3
DOIs
StatePublished - Apr 1 1999

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Immunization
Vaccines
Measles-Mumps-Rubella Vaccine
Health Status
Students

Keywords

  • Community
  • Health status
  • Immunization
  • Pediatrics
  • Preventive medicine
  • Vaccine (specific name)

ASJC Scopus subject areas

  • Epidemiology
  • Public Health, Environmental and Occupational Health

Cite this

Minimum time interval adjustment for 4-3-1 immunization rates among two- year-old children. / Steiner, R. Prasaad; Hughes, Judith A.; Richardson, Terry L.; Looney, Stephen Warwick; Clover, Richard D.; Rowe, Melinda G.

In: American Journal of Preventive Medicine, Vol. 16, No. 3, 01.04.1999, p. 189-194.

Research output: Contribution to journalArticle

Steiner, R. Prasaad ; Hughes, Judith A. ; Richardson, Terry L. ; Looney, Stephen Warwick ; Clover, Richard D. ; Rowe, Melinda G. / Minimum time interval adjustment for 4-3-1 immunization rates among two- year-old children. In: American Journal of Preventive Medicine. 1999 ; Vol. 16, No. 3. pp. 189-194.
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