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Defining and Measuring Chronic Conditions: Imperatives for Research, Policy, Program, and Practice

The figure consists of 2 series of boxes. A vertical cascade of 5 boxes begins at the top with “Data system,” which leads to “Data set,” then “Data elements,” “Coding algorithm,” and “Chronic condition indicator.” A horizontal series of boxes begins with “Identifying chronic conditions of interest,” which leads to “Specifying codes for conditions of interest” and then intersects the vertical cascade at “Coding algorithm.” Further conceptual interpretation of the figure is provided in the text.

Figure. Conceptual model for developing and applying classification schemes for chronic conditions to data elements for studying and monitoring health conditions.

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