Max Rady College of Medicine

Term: Resource Intensity Weights (RIW™)

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Glossary Definition

Last Updated: 2009-04-09


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: .

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  • 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)

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Manitoba Centre for Health Policy
Community Health Sciences, Max Rady College of Medicine,
Rady Faculty of Health Sciences,
Room 408-727 McDermot Ave.
University of Manitoba
Winnipeg, MB R3E 3P5 Canada