| ACA | Affordable Care Act of 2010 [commonly used shortened version of the Patient Protection and Affordable Care Act of 2010] |
| ACG | adjusted clinical group |
| ACS | American Community Survey |
| ADL | activity of daily living |
| AGI | adjusted gross income |
| AHRQ | Agency for Healthcare Research and Quality |
| ASEC | Annual Social and Economic Supplement [to the Current Population Survey] |
| ASPE | Assistant Secretary for Planning and Evaluation [in HHS] |
| BLS | Bureau of Labor Statistics |
| CBO | Congressional Budget Office |
| CE | Consumer Expenditure Survey |
| CHIP | Children’s Health Insurance Program |
| CPS | Current Population Survey |
| DB | defined benefit |
| DC | defined contribution |
| DCG | diagnosis cost group form of risk adjustment system |
| FPL | family poverty level |
| GDP | gross domestic product |
| HHS | U.S. Department of Health and Human Services |
| HIPAA | Health Insurance Portability and Accountability Act of 1996 |
| HMO | health maintenance organization |
| HRET | Health Research and Education Trust |
| HRS | Health and Retirement Study |
| HSA | health savings account |
| HTHS | Health Tracking Household Survey |
| IADL | instrumental activity of daily living |
| IOM | Institute of Medicine |
| IRA | individual retirement account |
| ITWG | Interagency Technical Working Group [on Developing a Supplemental Poverty Measure] |
| JSM | Joint Statistical Meetings |
| LIHEAP | Low Income Home Energy Assistance Program |
| LTC | long-term care |
| MCBS | Medicare Current Beneficiary Survey |
| MCER | medical care economic risk |
| MEPS | Medical Expenditure Panel Survey |
| MPS | Medical Providers Survey |
| NAS | National Academy of Sciences |
| NHIS | National Health Interview Survey |
| NLTCS | National Long Term Care Survey |
| NRC | National Research Council |
| OMB | U.S. Office of Management and Budget |
| RxRisk | risk adjustment system that uses information from automated outpatient pharmacy data systems to characterize chronic conditions |
| SCF | Survey of Consumer Finances |
| SIPP | Survey of Income and Program Participation |
| SNAP | Supplemental Nutrition Assistance Program [formerly Food Stamp Program] |
| SPM | Supplemental Poverty Measure |
| SPR | supplemental poverty rate |
| TANF | Temporary Assistance for Needy Families |
| TRIM3 | Transfer Income Model, version 3 |
| WIC | Special Supplemental Nutrition Program for Women, Infants, and Children |