Location, Location, Location: Leveraging Interactive Maps, Administrative and Census Data to Find...
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Transcript of Location, Location, Location: Leveraging Interactive Maps, Administrative and Census Data to Find...
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TITLE: LOCATION, LOCATION, LOCATION: LEVERAGING INTERACTIVE MAPS, ADMINISTRATIVE AND CENSUS DATA TO FIND AND DESCRIBE THE REMAINING
ELIGIBLE FOR COVERAGE IN THE HEALTH INSURANCE MARKETPLACES
Brett FriedSHADAC, University of Minnesota
State Health Research and Policy Interest GroupMinneapolis, MN
June 13, 2015 1Funded by a grant from the Robert Wood Johnson Foundation’s State Health Reform Assistance Network.
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Acknowledgments
Funding for this work is supported by the Robert Wood Johnson Foundation State Reform Assistance Network• Collaborators:• Elizabeth Lukanen (SHADAC)• Karen Turner (SHADAC)
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Research Questions
1) Can data be used to improve marketplace outreach?2) What geography is best?3) What are some of the challenges with using low level geographies?4) Are there strategies to make this data more useful?
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Where are we in terms of marketplace enrollment?
• 11.7 million at end of OEP2• CBO (March 2015)—21 million by 2016• 36% of Potentially Eligible (15% HI and 77% VT)• People who were easy to enroll have enrolled• http://aspe.hhs.gov/health/reports/2015/MarketPlaceEnrollment/Mar2015/ib_2015mar_enrollment.pdf
• https://www.cbo.gov/publication/43900
• http://kff.org/health-reform/state-indicator/marketplace-enrollment-as-a-share-of-the-potential-marketplace-population-2015/
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Availability of Survey Data - Geography
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Nation, States, & DC
Congressional Districts
Counties
School Districts
Public Use Microdata Area (PUMA)
Metro & Micro Statistical Areas
Zip Code Tabulation Areas
(ZCTA)
Census Tracts
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PUMAs: Public Use Microdata Areas
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PUMAs are geographic areas created by the Census Bureau to contain at least 100,000 people and nest within states.
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ZIP Code Tabulation Areas
• ZIP Code: Not created as an area based division but instead is a collection of mail delivery routes• ZIP Code Tabulation Area (ZCTA): Aligns ZIP codes with
census geography. Most frequently occurring ZIP code within census blocks
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Three Census Geographies: Advantages of each PUMA County ZCTA
Included in PUMS (can create custom variables from publically available files) X X
Data is timelyX (2014 data--
Sept. 2015)X (2014 data for all
counties--March 2016)X (2010-2014 data--
Dec. 2015)
Intuitive geography X
Reliable for full area population X
Neighborhood level estimatesX (
high density areas) X
Nests within other geography X
Data is annual X
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Using Administrative Data
Combining data• Map ZIP Codes to ZCTAs (administrative data)• Map ZCTAs to PUMAs (administrative data)• Estimate PUMA level Target Population (census
microdata)• Remaining Eligible (target pop – enrolled)
Map any administrative data that includes an address(e.g location of application assistors, hospitals, churches)
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Example: Illinois Marketplace Enrollment
Target Pop. Enrolled Remaining Eligible
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Map 1 - Data intensive: Drill down
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Map 2 - Outreach Intensive: Counties
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Summary
Choosing the best geography • Availability, timelines and reliability• The research question• Audience for the analysis
Advantage of ZIP Code level data• Captures variation between neighborhoods
Disadvantages • Less reliable• Cannot trend• Categories and variables are preset by census• Not timely
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Summary (2)
Interactive maps and admin data can help• Interactive maps• Can include anything that has an address• Can include multiple geographies• Can include underlying data• Can include number and percent • Can be accessed anywhere the internet is
available• Administrative data• Timeliness• Usefulness
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www.shadac.org@shadac
Brett Fried
Senior Research Fellow
612.624.1406
Contact Information
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