How can we estimate QALYs based on PHQ-9 scores? Equipercentile linking analysis of PHQ-9 and EQ-5D.
Toshiaki A FurawakaStephen Z LevineClaudia BuntrockDavid D EbertSimon GilbodySally BrabynDavid KesslerCecilia BjörkelundMaria ErikssonAnnet KleiboerAnnemieke van StratenHeleen RiperJesus Montero-MarinJavier Garcia-CampayoRachel PhillipsJustine SchneiderPim CuijpersEirini KaryotakiPublished in: Evidence-based mental health (2021)
The conversion table between the PHQ-9 and the EQ-5D-3L scores will enable fine-grained assessment of burden of depression at its various levels of severity and of impacts of its various treatments.