You are here

Chronic Condition Data Warehouse

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.

Data Years Available: 
N/A
Periodicity: 
1999-present
Mode of Collection: 
N/A
Selected Content: 
N/A
Population Covered: 
N/A
Methodology: 
N/A
Response Rates and Sample Size: 
N/A
Interpretation Issues: 
N/A
References: 

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