Project Title

Development of Post-Acute Care Supplement (PACS) Research Files

Shortened Title

PACs Research Files

Publication Date

2012

Abstract

Purpose: To support comparative effectiveness research (CER) on patients with multiple chronic conditions who receive Medicare and Medicaid-funded post-acute care.

Scope: This project creates post-acute care supplement (PACS) files for patients receiving Medicare and Medicaid-funded post-acute care using two Centers for Medicare & Medicaid Services (CMS) administrative data sets. These files supplement current utilization-based quality measures with measures of patient functional status, psychosocial well-being, cognitive impairment, communication difficulties, and vital care processes including medication management.

Methods: Using two CMS assessment data files—the Minimum Data Set (MDS) for nursing home care, and the Outcome and Assessment Information Set (OASIS) for home health care—SPHERE created two longitudinal files with one observation per person per year. These files—named the OASIS Annual Summary File (OASF) and Long-term care Annual Summary File (LTCASF)—are structured to be easy-to-use for researchers across a variety of disciplines and are readily linkable to other CMS administrative sources.

Results: Using the 2000-2010 OASF file, we determined that home health utilization rose fastest for black and Hispanic Medicare beneficiaries and for Medicare beneficiaries in Texas, Oklahoma, and Louisiana. Although functional status has not changed for most Medicare beneficiaries, the functional status for disabled Medicare beneficiaries under 35 has improved over the last 10 years.

List of Publications and Products: None

EHR/EMR System or Vendor

Post-Acute Care Supplement (PACS) datasets: 1) OASIS Annual Summary File (OASF) and Long-term Care Annual Summary File (LTCASF) created from the CMS Outcome and Assessment Information Set (OASIS) and Minimum Data Set (MDS) assessment files, respectively

Geographic scope type

National

Locations of Focus

Not applicable.

Population Network Size

Not applicable. This project involved the creation of new data files from existing Centers for Medicare and Medicaid administrative files.

Informatics Platform/Tools

Please see "additional information" below.

CER/PCOR Study Priority Populations

Individuals with disabilities, Individuals who need chronic care

Treatment Comparators

Not applicable

Outcome(s) of Interest

Create data files to supplement current utilization-based quality measures with measures of patient functional status, psychosocial well-being, cognitive impairment, communication difficulties, and vital care processes including medication management.

Acknowledgement of Funders

The SPHERE Institute and Acumen, LLC thank the Agency for Healthcare Research and Quality (AHRQ) for their generous support of this project.

Additional Information

These data files, created from the OASIS and MDS assessment files respectively, provide researchers with additional tools for studying Medicare and Medicaid beneficiaries who experience post-acute care in nursing home or home health settings by transforming the episodic OASIS and MDS assessment data into an easy-to-use longitudinal structure that summarizes the data into one observation per beneficiary per year. The OASF and LTCASF are designed to meet the needs of most researchers and policy analysts and can be used in isolation or, more importantly, in combination with standard CMS research files such as the Beneficiary Annual Summary File (BASF). Linked OASF and LTCASF files will be distributed to researchers via the Medicare/Medicaid Resource Information Center (MedRIC).

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