17 March 2020 - Health state utilities are used to provide quantitative measures of how strongly a person values a certain health state.
Distinct from other patient-reported outcome measures, which may not be based on preference, utilities estimate a person’s preference for an outcome, such as sexual dysfunction, which may be very different from another person’s.
Utilities are measured on a scale of 0 to 1, in which 0 represents a health state equivalent to death and 1 represents a health state of perfect health.