The 2015 Ohio Medicaid Assessment Survey (OMAS) is a critical resource for assessing health statuses, health care access and service utilization, and select behavioral risks for Ohioans, with an emphasis on current Medicaid members and adults who are potentially eligible to receive Medicaid insurance. The 2015 OMAS is the 6th iteration of the series and builds upon prior surveys to identify trend changes for Ohio's Medicaid, Medicaid-eligible, and non-Medicaid populations. It is a cross-sectional random probability survey of non-institutionalized Ohio adults aged 19 years and older and proxy interviews of children aged 18 years and younger. The 2015 survey had a sample size of 42,876 adult interviews and 10,122 child interviews (via proxy adults).
The 2015 OMAS is an Ohio Medicaid Technical Assistance and Policy Program (MedTAPP) project funded by the Ohio Department of Medicaid (ODM), the Ohio Department of Health (ODH), the Ohio Department of Mental Health and Addiction Services (OhioMHAS), and The Ohio State University (OSU). The OMAS survey vendor is RTI International, a non-profit organization that provides research and technical services.
Survey Data
The 2015 OMAS public use dataset and documentation are available for download below. This public use dataset contains data collected from the adult and child questionnaires, except for select variables relating to the administration of data collection.
2015 Public Use Datasets
Please note that the 2015 Public Use datasets were revised in April 2023 to address updates to the way that derived race-ethnicity variables were coded and how health insurance variables were imputed to better align with changes that were made inthe 2021 OMAS data. Survey weights were also updated as part of the revision. If you utilized the earlier version of the file, your estimates may be slightly different, and we encourage you to re-download the file for analysis.
2015 OMAS Analytical Codebook
2015 Questionnaire
Design and Methods
The 2015 OMAS was structured as a stratified random digit dial dual-frame (cell phone and landline phone) complex designed (multiple strata) telephone survey that enables analyses at the state, Medicaid Managed Care Plan region, and select county levels. Survey weighting was performed in stages at the county, regional, state, oversample, and cell phone levels to provide robust analyses with inferential certainty. It excluded institutional settings such as university dorms, incarceration facilities, assisted living facilities, hospitals, and businesses. The selection method ensured a reliable sample of residents. Additionally, to address cultural/ethnic/racial variations, African-Americans were oversampled and Hispanics and Asians were set into separate sample lists via surname techniques. Download the complete methods report to learn more about the design and data collection processes.
2015 Methodology Report
Research and Reports
Below is a list of briefs, chartbooks, and presentations that address key findings from the 2015 OMAS. The analyses completed were exploratory and are meant to be descriptive in nature. Because they were not driven by specific research questions, no statistical testing was conducted, and the precision of provided estimates is assessed using confidence intervals. The provided confidence intervals should not be used to conduct “ad-hoc” testing to compare differences between groups. For any research using data from the 2015 OMAS, a research plan should be specified that includes primary hypotheses and corresponding statistical analysis strategies.
| Title and Author | For Download | ||
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2015 Update on Public-Private Substitution among Adults in Ohio Medicaid Brief Eric Seiber, PhDTimothy R. Sahr, MPH, ThM, MA, MDiv |
Brief | ||
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Profile of Ohio’s Medicaid-Enrolled Adults and Those who are Potentially Eligible Thalia Farietta, MSRachel Tumin, PhD |
Chartbook | ||
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Profile of Medicaid-Enrolled and Unenrolled Children Amy Ferketich, PhDThalia Farietta, MS |
Chartbook | ||
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Pre-conception and Pregnancy in Ohio Elizabeth Conrey, PhD |
Chartbook | ||
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Healthcare Access for Dual-Eligibles (Medicaid-Medicare) in Ohio Carol Carstens |
Brief | ||
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Lacking a Usual Source of Health Care: Findings for Ohio's Medicaid, Medicaid-Eligible, and Other Key Subpopulations Kenneth Steinman, PhD, MPD |
Brief | ||
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Poverty and Health Among Ohio Adults: The Role of Medicaid Timothy R. Sahr, MPH, ThM, MA, MDiv |
Brief | ||
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Health Care for the Uninsured: Findings for Ohio's Medicaid-Eligible Adults and Other Key Subpopulations Kenneth Steinman, PhD, MPD |
Brief | ||
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Health Status and Health Care Outcomes in Ohio's Medicaid-Eligible, Non-Working Population Kenneth Steinman, PhD, MPD |
Brief | ||
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Health Status and Health Behaviors among Medicaid-Enrolled Working-Age Adults and Comparative Groups in Ohio Rachel Rohrbach, MPHAmy K. Ferketich, PhD Eric E. Seiber, PhD |
Brief | ||
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Ohio Children with Special Health Care Needs: 2015 OMAS Health and Health Care Findings Emily A. YangSusan M. Havercamp, PhD Rebecca Andridge, PhD |
Brief | ||
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Ohio Children with Developmental Disabilities and Special Health Care Needs: 2015 OMAS Health and Health Care Findings Emily A. YangRebecca McAdams, MA, MPH Susan M. Havercamp, PhD Rebecca Andridge, PhD |
Brief | ||
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Ohio Adults with Special Health Care Needs: 2015 OMAS Health and Health Care Findings Emily A. YangSusan M. Havercamp, PhD Rebecca Andridge, PhD |
Brief | ||
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Ohio Adults with Developmental Disabilities and Special Health Care Needs: 2015 OMAS Health and Health Care Findings Emily A. YangSusan M. Havercamp, PhD Rebecca Andridge, PhD |
Brief | ||
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The Prevalence of Fall Injuries Among Older Ohioans Colin OddenMarc Molea |
Brief | ||
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Impact of Medicaid Expansion on Potential Child Enrollment in Medicaid Eric Seiber, PhDTimothy Sahr, MPH, MA, ThM |
Brief | ||
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An Examination of Substance Use Among Medicaid-Enrolled Adults and Comparison Populations in Ohio Amy Ferketich, PhDOrman Hall, MA |
Brief | ||
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Estimating the Woodwork Effect for Adult Medicaid Enrollment in Ohio Eric Seiber, PhDTimothy R. Sahr, MPH, ThM, MA, MDiv |
Brief | ||
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The Changing Landscape of Healthcare Coverage Across Ohio: What does it mean for our health? Debut of the 2015 Ohio Medicaid Assessment Survey Statewide Findings |
PowerPoint | ||
Ohio Medicaid Assessment Survey Sponsored Research Conference
June 29, 2016
On behalf of the Ohio Department of Medicaid and the Ohio Department of Health, please download conference materials for key findings from the 2015 Ohio Medicaid Assessment Survey.
Agenda for the June 29, 2016 OMAS Sponsored Research Conference
Presentations
- The Health of Women, Infants, and Children: A Life Course Approach
- Social Determinants of Health, Access to Health Care and Health Care Utilization
- Patient-Centered Medical Homes and the Health of Ohio’s Adults and Children
Presentation Recording
Chartbooks
- The Health of Women, Infants, and Children: A Life Course Approach among Medicaid and Comparative Populations
- Social Determinants of Health, Access to Health Care, and Health Care Utilization
- Patient-Centered Medical Homes and the Health of Ohio's Adults and Children
Briefs
- The Health of Women, Infants and Children: A Life Course Approach among Medicaid and Comparative Populations
- Health Status Among Ohioans, Ages 19-64, with Medicaid and Potentially Medicaid Eligible Groups: A Social Determinants of Health Perspective
- Patient-Centered Medical Homes and the Health of Ohio's Adults and Children