Definition of QALY in English:

QALY

Pronunciation /ˈkwälē/ /ˈkwɑli/

nounQALYs

  • (in the context of cost-benefit analysis) a unit used in the prediction of both quality and duration of life after medical or surgical treatment.

    • ‘the new analysis found the vaccine cost over $300,000 per QALY’

Origin

1970s abbreviation of quality-adjusted life year.