Empowering Local Health through GIS

Transcription

1 Empowering Local Health through GIS Mapping data from Washington s Immunization Information System (IIS). Presented to IACW October 16 th, 2013 by: Chris Halsell and Isaiah Berg

2 Agenda IIS Overview Why Map IIS Data Mapping Project Lessons Learned Bringing IIS Data to Local Health

3 WAIIS Overview Washington Immunization Information System (WAIIS) Immunization Data Reporting requirements and gaps Individual Records vs. Aggregate reports o Privacy issues o Data structure o Data Completeness and accuracy

4 Why Map IIS data? Additional source of immunization data Efficient, sustainable and easy to understand aggregate data for: Program Monitoring Program Evaluation Disease surveillance and research

5 Information Needs of Different Stakeholders Public Health Researchers Completeness Practitioner WAIIS usage patterns Public Health Policy and Planning Completeness Reliability Regional differences Local case studies Local Health Practitioners Completeness Reliability Local differences

6 The National Immunization Survey (NIS) is a random-digit-dialed telephone survey used to monitor vaccination coverage among U.S. children aged months. Percent of WA students meeting school entry requirements and having exemptions of requirements. Percentage of patients meeting ACIP recommendations by individual provider

7 Interactive Web Map of WA School Immunization Rates

8 From Idea to Practice

9 IIS Mapping Project-Internship How can we effectively leverage GIS to improve our understanding of IIS data? Mapping School District Immunization and Exemption Rates Mapping IIS Pocket of Need Immunization Coverage rates for different series at Different scales. Evaluating Completeness and Accuracy of the IIS

10 IIS Data Types Specific Immunization Pocket of Need Report Completeness One Dose Away Missed Opportunity Individual Antigens Geodata (Zipcode/County) Different Geographic Scales for Different Users State and County (Washington State DOH) County and Zipcode (Local Health Officers and Epidemiologists) Zipcode and City (Local Health Practioners)

11 Potential use of school level Immunization data by local Health: Compare Socio-Demographics at the Census tract level to Immunization Coverage and Exemption rates.

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13 Individual Antigen

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15 IIS Mapping Project-UW partnership A need to expand the project scope Partner with University of Washington Geography Department. Document methods and process Evaluate Completeness and accuracy using GIS Develop a robust set of Geo-processes automation scripts called VaxViz

16 Spokane County Mapping Immunization Series Completeness Rate at the Zipcode Level

17 Spokane County Mapping One Dose Away at the Zipcode Level

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20 Evaluating Completeness and Accuracy What is the accuracy of the IIS? How well do Vital statistics compare with IIS record completeness? What about completeness at the sub-county scale?

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22 VaxViz System Requirements ArcGIS 10.1 (Should work on 10.0/10.2) Working Knowledge of ArcGIS 10.1 and extensions. Current DoH Desktop Computer hardware (no new computers or software) Minimal disk space

23 Skill sets and competencies needed to map Immunization data Intermediate GIS knowledge Local area knowledge for small-area mapping Training on Protected Health Information (PHI) privacy and handling for ZIP Code level data Knowledge of Immunization, the WAIIS database and PoN reports Basic knowledge of data management software (Excel/Access/SQL)

24 VaxViz Project Recommendations Identify who at LHJ s would use GIS and how much training is needed. Contract a GIS application developer/gis analyst with python and ArcPy programing skills. Future Vision: an automatically updated slippy map of vaccination data Interviews with LHJ s to better understand their needs

25 Where do we go from here? An opportunity to make Health data more accessible and usable in Washington State. Making IIS data Available for Use at the Local Level: A project Plan supporting the Agenda for Change Partnering With the UW and Local Health Jurisdictions But First: engaging LHJs so our work is useful for them

26 Questions? Contact: Chris Halsell Immunization Assessment Coordinator