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Chronic Condition Data Warehouse (CCW)

Description

The Chronic Condition Data Warehouse (CCW) is a research database designed to (1) identify areas for improving the quality of care provided to chronically ill Medicare beneficiaries; (2) identify ways to reduce program spending; and (3) make current Medicare data more readily available to researchers studying chronic illness in the Medicare population. The CCW contains fee-for-service institutional and non-institutional claims, enrollment/eligibility, and assessment data from 1999 forward for a random 5% sample of Medicare beneficiaries (100% for 2005 forward). The data are linked by a unique, unidentifiable beneficiary key, which allows researchers to analyze information across the continuum of care.

Supplier

Centers for Medicare & Medicaid Services (CMS)

Data Years Available

N/A

Periodicity

1999-present

Mode

N/A

Selected Content

N/A

Population covered

N/A

Methodology

N/A

Response rate and sample size

N/A

Interpretation Issues

N/A

References

http://www.ccwdata.org and related web pages. Accessed September 1, 2010.