KEYWORDS:
Comparison of CIRTS to NIS data; HEDIS Reporting; provider immunization rates
BACKGROUND:
The CT Immunization Registry and Tracking System (CIRTS) initiated as a pilot in Hartford, CT in l993. Its success in raising immunization rates in Hartford resulted in its expansion. In l996 all CT children participating in Medicaid Managed Care were enrolled into CIRTS; in l998 CIRTS was expanded to enroll all CT children.
OBJECTIVE:
1. Show a registry with data complete and clean enough to: a) compare to NIS data; b) produce the HEDIS reports for all Medicaid Managed Care Plans in the state; c) produce immunization rates for all pediatric practices in CT
2. Describe that having a registry and required reporting is insufficient to ensure complete and accurate data
3. Describe methods for improving compliance with registry reporting requirements
METHOD:
· Birth cohort data were obtained from vital records
· Data on children enrolled in Medicaid Managed Care were obtained from the CT Department of Social Services and all plans with Medicaid contracts in CT
· Data on immunization histories were obtained on-line and from hard copy submitted by pediatric practices statewide
RESULT:
* Data will be updated to include 2000 birth cohort
· Of < 2 year old population enrolled in CIRTS, 91% of these children have at least 2 vaccine doses in CIRTS
· For the 1999 birth cohort enrolled in Medicaid, 97% have immunization histories in CIRTS
· For the 1999 birth cohort, CIRTS produced immunization rates. 78% of children enrolled in Medicaid were UTD using the HEDIS 3.0 Specifications; 71% of all children in this birth cohort were UTD.
· In a comparison of NIS and CIRTS Data from the 1999 Birth Cohort: 78% of NIS children were UTD using 4,3,1,3,3; and 82% of CIRTS children were UTD (minus those lost to follow-up)
CONCLUSION:
Data complete and clean enough to produce immunization status reports representative of rates within a state can be obtained.
LEARNING OBJECTIVES:
Having an immunization registry and required reporting are not sufficient to ensure clean data. Additional interventions and follow-up are necessary.
Handout (.ppt format, 280.0 kb)
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