Accuracy and usefulness of the HEDIS childhood immunization measures

David G. Bundy, Barry S. Solomon, Julia M. Kim, Marlene R. Miller

Research output: Contribution to journalArticlepeer-review

Abstract

OBJECTIVE: With the use of Centers for Disease Control and Prevention (CDC) immunization recommendations as the gold standard, our objectives were to measure the accuracy ("is this child up-to-date on immunizations?") and usefulness ("is this child due for catch-up immunizations?") of the Healthcare Effectiveness Data and Information Set (HEDIS) childhood immunization measures. METHODS: For children aged 24 to 35 months from the 2009 National Immunization Survey, we assessed the accuracy and usefulness of the HEDIS childhood immunization measures for 6 individual immunizations and a composite. RESULTS: A total of 12 096 children met all inclusion criteria and composed the study sample. The HEDIS measures had >90% accuracy when compared with the CDC gold standard for each of the 6 immunizations (range, 94.3%-99.7%) and the composite (93.8%). The HEDIS measure was least accurate for hepatitis B and pneumococcal conjugate immunizations. The proportion of children for which the HEDIS measure yielded a nonuseful result (ie, an incorrect answer to the question, "is this child due for catch-up immunization?") ranged from 0.33% (varicella) to 5.96% (pneumococcal conjugate). The most important predictor of HEDIS measure accuracy and usefulness was the CDC-recommended number of immunizations due at age 2 years; children with zero or all immunizations due were the most likely to be correctly classified. CONCLUSIONS: HEDISchildhood immunizationmeasuresare,onthewhole, accurate and useful. Certain immunizations (eg, hepatitis B, pneumococcal conjugate)andchildren(eg, thosewithasingleoverdueimmunization),however, are more prone to HEDIS misclassification.

Original languageEnglish (US)
Pages (from-to)648-656
Number of pages9
JournalPediatrics
Volume129
Issue number4
DOIs
StatePublished - Apr 2012

Keywords

  • Health care surveys
  • Immunizations
  • Quality indicators

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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