Visual Analogue Scale
- VAS is a graphical method for rating health states directly. A common instrument is a figure akin to a thermometer, on which are marked two anchor states, and on which the rater is asked to mark their rating of some other state, usually lying between the two anchors. Used in deriving quality-adjusted life-years and related measures of health status. The instrument may be used to scale hypothetical states of health (as in time trade-off exercises) and as a means for individuals to summarize their own health states.
- acronymVAS (written as visual analogue scale)