2012 OMAS Survey

2012 OMAS Survey

In 2012, the Ohio Department of Medicaid redoubled its efforts to collect population-level health and health systems data specific to Ohio’s Medicaid and Medicaid eligible populations. These data were critical to assess the potential impacts of the Patient Protection and Affordable Care Act. With this intensified focus, the Ohio Department of Medicaid replaced the Ohio Family Health Survey (OFHS) with the Ohio Medicaid Assessment Survey (OMAS).

Survey Data

The 2012 OMAS dataset is available for download in SAS, STATA, SPSS, and R versions. SAS formats are also available. This public dataset includes all of the data collected during the survey except zip code and census tract. Researchers interested in obtaining a dataset with these geographic identifiers should contact GRC to learn more about the process for acquiring the restricted-access research dataset.

Submit a Data-Use Inquiry (Email)

2012 Public Use File

The Adult and Child Codebooks include a complete list of the variables in the dataset. The 2012 OMAS public dataset also includes a subset of variables for which missing data were imputed and a number of derived variables. Derived variables are variables that were created from two or more survey items. The Derived Variable Codebook has a complete listing of the imputed and derived variables that are available.

OMAS is a complex designed survey that requires special software to perform data analysis. Users should not analyze the data in Excel.

The sample size of the 2012 OMAS is not sufficient to calculate county-based estimates. For geographic estimates, data users can calculate population-level estimates for the state, the four county clusters (Appalachia, rural, suburban, and metropolitan), and the eight Medicaid Managed Care Planning Regions.

2012 OMAS Analytical Codebook Files

Design and Methods

The 2012 OMAS is a complex designed dual-framed (cell phone and landline phone) cross-sectional telephone survey with a sample size of 22,929. The 2012 OMAS enabled analysis for Ohio’s Appalachian, rural, suburban, and metropolitan county clusters, and enabled selected analysis at Medicaid Managed Care Regions and the 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. The 2012 OMAS excluded institutional settings such as university dorms, incarceration facilities, assisted living facilities, hospitals, and businesses. Additionally, to address cultural/ethnic/racial variations, African-Americans are oversampled and Hispanics and Asians are set into separate sample lists via surname techniques. The data collection period for the 2012 OMAS began in late May 2012 and finished in early October 2012. Download the full methods report to learn more about the design and data collection processes.

Methods Report (PDF)
Errata Sheet (PDF)

A number of documents pertaining to the sampling strategy, pilot testing, final questionnaires, and data editing and recoding are available: 

Research and Reports

Below is a list of briefs and reports that address key findings from the 2012 OMAS. In addition to these documents, descriptive tables are also available for download. These descriptive tables have information on the distribution of key variables for all of Ohio, the four county clusters, the eight Medicaid Managed Care Planning Regions, and those currently enrolled and not enrolled in Medicaid. Data on the adult variables are available for three populations: non-senior adults (ages 19-64), seniors (ages 65 and older, and all adults (ages 19 and older). Data on the child variables are provided for the population of all children (ages 0-18).

A one-page summary of the methods used to create these descriptive tables is also available for download.

Methods Summary (PDF)
Descriptive Tables (XLSX, download)

Reports

Briefs

Appendices

Related Links