LOCATION, LOCATION, LOCATION: LEVERAGING INTERACTIVE MAPS AND ZIP CODE

LEVEL DATA TO FIND THE REMAINING UNINSUREDBrett Fried

SHADAC, University of MinnesotaMinnesota Health Services Research Conference

St. Paul, MN

March 3, 2015

1Funded by a grant from the Robert Wood Johnson Foundation’s State Health Reform Assistance Network.

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

Can data be used to improve outreach for health insurance marketplaces?

What analytic geography is best?

What are some problems with using data from low level geographies?

Are there strategies to make this data more useful?

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IS MARKETPLACE ENROLLMENT OVER?

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Where are we in terms of marketplace enrollment?

• 11.4 million as of Feb. 15

• CBO--24 million by 2017

• 41% of Potentially Eligible (Kaiser)

• People who were easy to enroll have enrolled

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How can data help?

• Increase the efficiency of targeting

• Evaluate outreach strategies

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WHAT GEOGRAPHY IS BEST

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What geography is best?

1.What is the purpose of the analysis?

2.Who is the audience for the analysis?

3.What is the target population?

4.How reliable is the data?

5.How timely?

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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

PUMAs: Public Use MicrodataAreas

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PUMAs are geographic areas created by the Census Bureau to contain at least 100,000 people and nest within states.

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 ZCTAIncluded 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• Currently enrolled (administrative data)

• Target Population (census data)

• 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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LEVERAGING THE POWER OF MAPS

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Map 1 - Data intensive: Drill down

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Map 2 - Outreach Intensive: Counties

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Map 3 - Targeting Intensive: ZCTAs

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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

bfried@umn.edu

612.624.1406

Contact Information

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