General PaperValuing health status using VAS and TTO: What lies behind the numbers?
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Cited by (134)
Effect of Health State Sampling Methods on Model Predictions of EQ-5D-5L Values: Small Designs Can Suffice
2019, Value in HealthCitation Excerpt :VAS was used in this research for its simplicity and VAS values served as proxies for time trade-off (TTO) values. Even though TTO (a trade-off exercise involving duration) and VAS (a direct scaling exercise) are two different tasks [10], they are both used to elicit cardinal preference data on the same object. Moreover, from experience, we know that a VAS data set can be close to its TTO counterpart [11–14].
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