Correcting Biases in Standard Gamble and Time Tradeoff Utilities
نویسندگان
چکیده
منابع مشابه
Correcting biases in standard gamble and time tradeoff utilities.
The standard gamble (SG) method and the time tradeoff (TTO) method are commonly used to measure utilities. However, they are distorted by biases due to loss aversion, scale compatibility, utility curvature for life duration, and probability weighting. This article applies corrections for these biases and provides new data on these biases and their corrections. The SG and TTO utilities of 6 rheu...
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Utility is a simple expression of health-related quality of life in individuals with different states of health. A number of studies on utility measurements were conducted and published in the past. We retrieved 164 English-language articles which appeared in 1966 through 1999 for a systematic review. The number of reports has been increasing at an accelerating pace, especially during the past ...
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BACKGROUND There are no published utilities for the post-anesthesia state obtained by the standard gamble method (SG). METHODS We obtained utilities for postoperative pain, nausea, vomiting, urinary retention and myalgia from 100 adults prior to elective surgery using SG. RESULTS 20% of volunteer participants could not demonstrate a satisfactory understanding of the SG process. Median utili...
متن کاملValidity of the time trade-off and standard gamble methods of utility assessment in retinal patients.
AIM To assess the validity of the time trade-off (TTO) and standard reference gamble (SRG) techniques of utility assessment in patients with retinal disease. A cross section of eligible patients was studied and validity was determined through their relation with two logical constructs, visual acuity and scores from the Visual Function 14 (VF-14) index. METHODS The study consisted of eligible ...
متن کاملStandard gamble, time trade-off and rating scale: experimental results on the ranking properties of QALYs.
This paper compares the relative performance of quality adjusted life years (QALYs) based on quality weights elicited by rating scale (RS), time trade-off (TTO) and standard gamble (SG). The standard against which relative performance is assessed is individual preference elicited by direct ranking. The correlation between predicted and direct ranking is significantly higher for TTO-QALYs than f...
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ژورنال
عنوان ژورنال: Medical Decision Making
سال: 2004
ISSN: 0272-989X,1552-681X
DOI: 10.1177/0272989x04268955