“…The methods detailing how utility was measured were also described (electronic supplementary Appendix II, Table A-II). The values or changes in utility were measured by levels of PASI response in five studies [24,40,51,53,62]. Three studies mapped the Dermatology Life Quality Index (DLQI) to European Quality of Life-5 Dimensions (EQ-5D) utilities [35,57,59]; however, Woolacott et al [67] mapped the change in DLQI associated with different PASI response categories and baseline DLQI scores to changes in EQ-5D utility.…”