decision analysis


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de·ci·sion a·nal·y·sis

a derivative of operations research and game theory that involves identifying all available choices and the potential outcomes of each, in a series of decisions that have to be made about patient care-diagnostic procedures, therapeutic regimens, prognostic expectations; the range of choices can be plotted on a decision tree.

decision analysis

Clinical decision analysis Decision making
1. An approach to decision making under conditions of uncertainty, involving modeling of sequences or pathways of multiple possible strategies–eg, of diagnosis and treatment for a particular clinical problem to determine which is optimal; DA is based on available estimates–drawn from the literature or from experts of the probabilities that certain events and outcomes will occur and the values of the outcomes that would result from each strategy. See Decision tree.
2. An analysis in which '…a problem is stated, assumptions concerning probabilities and utilities are made, and a conclusion is reached based on the results. If the reader (of the analysis) agrees with the structure, assumptions, and probabilities of the analysis, then he or she must agree with its conclusion.' See Algorithm, Critical pathway.

decision analysis

A logical, consistent approach to making a medical decision when its consequences cannot be foretold with certainty. Uncertainties in medical practice are due to many factors (e.g., biological variation and limitations in the clinical data available for an individual patient). There are three steps in the analysis: 1. the consequences of each option is described schematically by the use of a decision tree; 2. probability is used to quantify the uncertainties inherent in each option; and 3. each possible outcome is designated by a number that measures the patient's preference for that outcome as compared with the others. After the last step is completed, each outcome is assigned a “utility” value in which 1.0 indicates a perfect outcome and 0 is the worst possibility. Decision analysis may be used to help members of the health care team and the patient make logical choices concerning management of illness.
References in periodicals archive ?
[9.] Clemen, R.T., Making Hard Decisions: An Introduction to Decision Analysis. 1996: Duxbury Press.
The MCDA approach couples a narrative evaluation with mathematically based formal decision analysis tools, such as multi-attribute utility theory (MAUT) and outranking.
Data source: This was a decision analysis in which the probabilities of various surgical outcomes based upon studies in the published literature were applied to a hypothetical cohort of 200,000 women undergoing hysterectomy for removal of fibroids, half laparoscopically with morcellation and half via abdominal hysterectomy.
We provide some performance measurements to insure that the software can be used for interactive decision analysis together with an illustrative example showing the increase of discriminative power obtained when allowing for second-order distributions.
(2006) classified a total of 252 studies of decision analysis studies in E&E published from 1975 to 2004.
Risk and decision analysis in maintenance optimization and flood management.
The team, led by Ana Andrade and Jose Manuel Rebordao, applied the multicriteria decision analysis method (MDA), establishing the technology used (from accessible to proprietary), design (ease of simulation) and quality of manufacture (accuracy of reproduction, consistency etc) as criteria used to evaluate DOVIDs.
Palisade announces speaker line-up for European User Conference14th - 15th April 2010, Institute of Directors, 116 Pall Mall, central LondonAa AaRisk and decision analysis software specialist, Palisade (www.palisade.com) has today confirmed the programme for its European User conference, which is taking place at the Institute of Directors in central London on 14th and 15th April 2010.Aa 'New Approaches to Risk and Decision Analysis' will provide over 100 delegates from around the world with the opportunity to learn more about Palisade's technology as well as network with experts to discuss the practices of uncertainty analysis.AaThis event will bring customers from a range of industry sectors together.