title: Physician compliance with pneumococcal conjugate vaccine shortage recommendations in 2004.
abstract: OBJECTIVE
  To assess pattern of pneumococcal conjugate vaccine (PCV) administration during periods of vaccine shortage and changing recommendations.
  
  
  METHODS
  During 2004 PCV shortages, the Advisory Committee for Immunization Practices recommended delay of doses 3 and 4 (PCV3 and PCV4) to healthy children. A managed care health plan evaluated PCV doses administered to all enrolled children at ages 3, 5, 7, and 16 months in 2004; ICD9 codes were used to identify high-risk children.
  
  
  RESULTS
  Immunization coverage for the first two PCV doses remained relatively stable throughout 2004 for both high-risk and healthy children. PCV3 coverage for healthy children dropped significantly from 63 percent preshortage (February 2004) to a low of 7 percent (June 2004), then rose to preshortage levels of 2 months after recommendations were made to resume PCV3 administration. Coverage of high-risk children followed a similar pattern as that for healthy children. PCV4 coverage showed similar declines and increases following shortage-related recommendations as PCV3. Most children whose PCV3 dose may have been delayed during the shortage did receive PCV3 after the shortage.
  
  
  CONCLUSIONS
  Providers demonstrated rapid change in PCV administration in response to shortage-related recommendations. Little coverage difference was seen between healthy and high-risk children, possibly due to inadequate ability to determine which children truly are at high risk identified on the basis of ICD9 codes.
authors.affiliation: Health Services Research and Evaluation Branch, Immunization Services Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia 30333,USA. mkolasa@cdc.gov
authors.forename: Maureen S
authors.initials: MS
authors.lastname: Kolasa
authors.forename: Stephen M
authors.initials: SM
authors.lastname: Tannenbaum
authors.forename: John M
authors.initials: JM
authors.lastname: Stevenson
mesh_terms: D002675:Child, Preschool; D004363:Drug Utilization; D019983:Guideline Adherence / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D022242:Pneumococcal Vaccines / Q000600:supply & distribution*; D017410:Practice Guidelines as Topic; D010818:Practice Patterns, Physicians'; D012307:Risk Factors; D018074:Vaccines, Conjugate
chemical_list: D022242:Pneumococcal Vaccines; D018074:Vaccines, Conjugate