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Health Aff (Millwood). 2012 Sep;31(9):2094-104. doi: 10.1377/hlthaff.2011.0686.

Introducing decision aids at Group Health was linked to sharply lower hip and knee surgery rates and costs.

Author information

1
Group Health Research Institute, USA. arterburn.d@ghc.org

Abstract

Decision aids are evidence-based sources of health information that can help patients make informed treatment decisions. However, little is known about how decision aids affect health care use when they are implemented outside of randomized controlled clinical trials. We conducted an observational study to examine the associations between introducing decision aids for hip and knee osteoarthritis and rates of joint replacement surgery and costs in a large health system in Washington State. Consistent with prior randomized trials, our introduction of decision aids was associated with 26 percent fewer hip replacement surgeries, 38 percent fewer knee replacements, and 12-21 percent lower costs over six months. These findings support the concept that patient decision aids for some health conditions, for which treatment decisions are highly sensitive to both patients' and physicians' preferences, may reduce rates of elective surgery and lower costs.

PMID:
22949460
DOI:
10.1377/hlthaff.2011.0686
[Indexed for MEDLINE]

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