title: How much does a regional immunization registry increase documented immunization rates at primary care sites in rural colorado?
abstract: OBJECTIVE
  To determine increases in immunization up-to-date (UTD) rates at a rural pediatric practice with the sequential addition of records from other sites in a 2-county region.
  
  
  METHODS
  UTD rates for children aged 3 months to 35 months (n = 876) were determined for the index practice and then recalculated after sequential addition of records from 1) the other private practice in the region, 2) 7 public primary care sites, and 3) 2 public health clinics in the region.
  
  
  RESULTS
  Adding records from all sites increased documented UTD rates in the index practice from 49% to 64% at 3 months (N = 33, P = 0.025), 50% to 68% at 5 months (N = 38, P = 0.008), 28% to 45% at 7 months (N = 113, P <.01), 29% to 54% at 12 months (N = 200, P <.001), 11% to 35% at 19 months (N = 124, P <.001), and 10% to 33% at 24 months (N = 368, P <.001).
  
  
  CONCLUSIONS
  Regional registries will be valuable tools for immunization delivery if there is an ongoing commitment to effective collection of current and historical immunization data.
authors.affiliation: Department of Pediatrics, University of Colorado Health Sciences Center, Denver 80218, USA. kempe.allison@tchden.org
authors.forename: A
authors.initials: A
authors.lastname: Kempe
authors.forename: J F
authors.initials: JF
authors.lastname: Steiner
authors.forename: B L
authors.initials: BL
authors.lastname: Renfrew
authors.forename: E
authors.initials: E
authors.lastname: Lowery
authors.forename: K
authors.initials: K
authors.lastname: Haas
authors.forename: S
authors.initials: S
authors.lastname: Berman
mesh_terms: D002675:Child, Preschool; D003120:Colorado; D003266:Continuity of Patient Care; D006801:Humans; D007114:Immunization / Q000706:statistics & numerical data*; D017589:Immunization Programs / Q000458:organization & administration* / Q000706:statistics & numerical data; D007223:Infant; D011331:Private Practice; D012041:Regional Medical Programs; D012042:Registries; D019035:Rural Health Services / Q000458:organization & administration*