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Arm2011 chollet(barret) 6.12.11
1. Selection in Massachusettsโs
Commonwealth Care Program:
Lessons for State Basic Health Plans
June 12, 2011
Presentation to the 2011 AcademyHealth Annual Research Meeting
Deborah Chollet ๏ Allison Barrett ๏ Amy Lischko
2. Acknowledgements
๏ง This work was funded by the Robert Wood
Johnson Foundation SHARE program
๏ง The authors gratefully acknowledge helpful
review and comments from the SHARE
national program office
2
3. Background: Commonwealth Care Program
๏ง CommCare is part of Massachusettsโ 2006
health reform
๏ง Individuals must purchase coverage through
CommCare to obtain subsidies
โ Adults age 18-64, below 300% FPL, with no access to
public programs or employer-based plans
โ Full premium subsidies available up to 150% FPL,
and partial subsidies to 300% FPL
๏ง By end of 2008, enrollment in CommCare was
twice as large as the individual commercial
market
3
4. Research Questions
๏ง Was CommCare successful in enrolling
healthy, low-risk individuals?
โ Adverse selection raises program cost and can make
the program unsustainable
โ Did subsidies help to attract low risk enrollees?
๏ง Did CommCare enroll individuals who were
similar to individuals buying commercial
coverage?
โ What role did CommCare play in assisting
Massachusettsโs commercial insurance reforms?
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5. Methods and Data
๏ง Compare demographic characteristics,
spending, and service use of enrollees with
full, partial, or mixed subsidy status
โ CommCare eligibility and claims data from October
2006 through December 2008
๏ง Compare demographic characteristics of
CommCare eligibles
โ Massachusetts sample of the 2008 ACS
๏ง Compare spending and service use in
individual commercial market
โ Massachusettsโ 2007-2009 Cost Trends report
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6. CommCare Enrollees Were Older
๏ง By 2008, enrollees were disproportionately
older adults, especially partial subsidy group
Age Distribution of Eligibles and Enrollees, 2008
CommCare Eligibles CommCare Enrollees
Full Partial Full Partial
All subsidy subsidy All subsidy subsidy
Total
264.0 134.2 129.7 162.3 108.8 33.8
(thousands)
Age 18-24 26% 32% 19% 21% 26% 9%
Age 25-44 44% 40% 47% 38% 38% 41%
Age 45-64 31% 28% 33% 41% 36% 50%
Source: Mathematica Policy Research. Tabulations of Commonwealth Care enrollment data and the
2008 American Community Survey.
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7. Average Monthly Costs Declined
๏ง Average medical costs declined over time,
particularly for partial subsidy group
$600
Average Monthly Spending
$556
Full subsidy
$500
Partial subsidy
$405
$400
$310
$300
$293
$200
$100
$0
Apr-07
Aug-07
Apr-08
Aug-08
Dec-06
Feb-07
Dec-07
Feb-08
Dec-08
Oct-06
Oct-07
Jun-07
Oct-08
Jun-08
Source: Mathematica Policy Research.
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8. Full Subsidies and Auto Enrollment Brought In Low Risk
Average monthly spending for enrollees 100-150% FPL
Low-cost enrollees (under $250)
100%
No-cost enrollees
Percent of Enrollees
75%
42%
50% 53% 47%
52%
25%
42%
22% 27%
13%
0%
Jan-June July-Sept Oct-Dec Jan-Dec
2007 2007 2007 2008
Partial Full subsidy, Full subsidy,
subsidy, no no auto- auto-enroll
auto-enroll enroll
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9. CommCare vs. Commercially Insured Adults
๏ง Full subsidy enrollees
โ much younger than commercially insured
โ rate of inpatient hospitalization 34% higher
โ cost 35% less than the commercially insured in 2008
($475 vs. $307 per month), due to lower prices paid by
CommCare carriers
๏ง Partial subsidy enrollees
โ similar in age to commercially insured
โ rate of inpatient hospitalization 9% lower
โ cost 35% less than commercially insured ($310 per
month)
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10. Conclusions
๏ง Selection improved over time, especially for
the partial subsidy population
๏ง The fully subsidized population was adversely
selected compared to commercially insured
individuals
๏ง Service use among partial subsidy enrollees
was roughly equal to adults in the commercial
market
10
Mathematicaยฎ is a registered trademark of Mathematica Policy Research.
11. Lessons for Other States
๏ง Massachusetts created a separate risk pool for
uninsured low-income adults, an option for
other states under the ACA
๏ง Basic Health Plans are state-run, and cover
individuals between 133-200% FPL outside the
Exchange
๏ง This population in CommCare was similar to
commercially insured adults (though it included
adults at 200-300% FPL)
๏ง Enrollees were served more cheaply by
Medicaid MCOs
11
Mathematicaยฎ is a registered trademark of Mathematica Policy Research.
12. More Lessons
๏ง States considering a Basic Health Plan should
think about:
โ The effect of diverting a large number of new potential
enrollees from the Exchange
โ The effect on providers of a major expansion of
coverage relying on low payment rates
โ The value of auto-enrollment to balance risk
12
Mathematicaยฎ is a registered trademark of Mathematica Policy Research.
13. For More Information
๏ง Please contact:
โ Deborah Chollet
โข DChollet@mathematica-mpr.com
โ Allison Barrett
โข ABarrett@mathematica-mpr.com
โ Amy Lischko
โข Amy.Lischko@tufts.edu
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Mathematicaยฎ is a registered trademark of Mathematica Policy Research.