Knowledge of the childhood immunization schedule and of contraindications to vaccinate by private and public providers in Los Angeles

David Wood, Neal Halfon, Margaret Pereyra, Julie Shea Hamlin, Mark Grabowsky

Research output: Contribution to journalArticle

32 Scopus citations


Background. Missed opportunities to vaccinate occur commonly and contribute to the underimmunization of young children. They are related to provider knowledge of the immunization schedule and contraindications to vaccination. Methods. We surveyed private physicians (n = 50) and public health department physicians and nurses (n = 47). The questionnaire presented two sets of clinical scenarios in which they had to assess what immunizations were due and assess whether there were any contraindications to vaccination. Results. The mean percent correct responses on the immunization schedule questions was 64% (sd = 3.6%) for the private physicians, 71% (SD = 4.7%) for the public physicians and 78% (SD = 2.8%) for the public nurses (P = 0.04). The mean percent correct responses on the contraindications to vaccinate questions was 73% (SD = 5.4%) for public physicians, 58% (SD = 3.3%) for private physicians, and 55% (SD = 4.7%) for public health nurses (P = 0.02). Conclusions. Our survey shows that providers in the public and private sectors have important deficits in their knowledge of the immunization schedule and the appropriate contraindications to vaccinate which might lead to missed opportunities to vaccinate and low immunization coverage.

Original languageEnglish (US)
Pages (from-to)140-145
Number of pages6
JournalPediatric Infectious Disease Journal
Issue number2
StatePublished - Feb 23 1996



  • contraindications
  • immunization schedule
  • Immunizations
  • provider knowledge

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Microbiology (medical)

Cite this