Term: Resource Intensity Weights (RIW™)

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Glossary Definition

Last Updated: 2009-04-09

Definition:

Resource Intensity Weights (RIW™) are the relative case weights for CMGs™ used to measure the intensity of resource use (relative cost) associated with different diagnostic, surgical procedure and demographic characteristics of an individual. RIWs™ are assigned according to the case mix group to which an individual is assigned as well as their age, health status, and discharge status and are based upon micro-costing. In this report, we have used RIWs™ assigned using the CMG with Complexity Overlay (CMG Plx™) methodology.

For more information, please see the CIHI Web Site - Resource Indicators: Resource Intensity Weights (RIW) and Expected Length of Stay at: https://www.cihi.ca/en/data-and-standards/standards/case-mix/resource-indicators-dad-resource-intensity-weights-and .

Related concepts 

• Calculating Hospital Costs Using Cost Per Weighted Case (CPWC) / Cost of a Standard Hospital Stay (CSHS) Values
• Case Mix Groups (CMG™) - Overview
• Hospital Costing in the 1990's
• Hospital Costing: Using the 2009 Cost List for Manitoba Hospital Services
• Hospital Costing: Using the National Health Expenditure (NHEX) Database

Related terms 

• Atypical Stay
• Canadian Institute for Health Information (CIHI)
• Case Mix
• Case Mix Groups (CMG™)
• Case Mix Groups with Complexity Overlay (CMG Plx™)
• Case Weights
• Cost - Inpatient hospital care/day surgery
• Cost of a Standard Hospital Stay (CSHS)
• Cost Per Weighted Case (CPWC or CWC)
• Day Procedure Groups (DPG™)
• Diagnosis Related Group (DRG™)
• Diagnosis Related Groups (DRG™) Weights
• Discharge Abstract Database (DAD)
• Hospital Medical Records Institute (HMRI)
• Relative Weights
• Standardized Inpatient
• Total Weighted Cases (TWC)
• Typical Patient

Links 

• CIHI Web Site - Resource Indicators: Resource Intensity Weights (RIW) and Expected Length of Stay

References 

• Finlayson G, Reimer J, Dahl M, Stargardter M, McGowan K. The Direct Cost of Hospitalizations in Manitoba, 2005/06. Winnipeg, MB: Manitoba Centre for Health Policy, 2009. [Report] [Summary] [Additional Materials] (View)

Term used in 

• Finlayson G, Roos NP, Jacobs P, Watson D. Using the Manitoba Hospital Management Information System: Comparing Average Cost Per Weighted Case and Financial Ratios of Manitoba Hospitals. The Next Step. Winnipeg, MB: Manitoba Centre for Health Policy and Evaluation, 2001. [Report] [Summary] (View)
• Garland A, Fransoo R, Olafson K, Ramsey C, Yogendran M, Chateau D, McGowan K. The Epidemiology and Outcomes of Critical Illness in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2012. [Report] [Summary] (View)
• Menec V, Lix L, Steinbach C, Ekuma O, Sirski M, Dahl M, Soodeen R. Patterns of Health Care Use and Cost at the End of Life. Winnipeg, MB: Manitoba Centre for Health Policy, 2004. [Report] [Summary] (View)