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Quality-adjusted life year (QALY)

/ˈkwɒlɪti-əˈʤʌstɪd laɪf jɪə (kjuː-eɪ-ɛl-waɪ)/

A measure of the state of health of a person or group in which the benefits, in terms of length of life, are adjusted to reflect the quality of life. One QALY is equal to 1 year of life in perfect health