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  • Title: Valuation of pemphigus vulgaris and pemphigus foliaceus health states: a convenience sample experiment.
    Author: Rencz F, Brodszky V, Stalmeier PF, Tamási B, Kárpáti S, Péntek M, Baji P, Mitev AZ, Gulácsi L.
    Journal: Br J Dermatol; 2016 Sep; 175(3):593-9. PubMed ID: 27062497.
    Abstract:
    BACKGROUND: Health-related quality of life (HRQoL) in pemphigus has been widely investigated; nevertheless, utility values for economic evaluations are still lacking. OBJECTIVES: To estimate health utilities for hypothetical pemphigus vulgaris (PV) and pemphigus foliaceus (PF) health states in a general population sample. METHODS: Three health states (uncontrolled PV, uncontrolled PF and controlled pemphigus) were developed based on a systematic literature review of HRQoL studies in pemphigus. Utilities were obtained from a convenience sample of 108 adults using a visual analogue scale (VAS) and 10-year time trade-off (TTO). Lead-time TTO was applied for health states regarded as worse than dead with a lead time to disease time ratio of 1 : 1. RESULTS: The mean VAS utility scores for PV, PF and controlled pemphigus were 0·25 ± 0·15, 0·37 ± 0·17 and 0·63 ± 0·16, respectively. Corresponding TTO utilities were as follows: 0·34 ± 0·38, 0·51 ± 0·32 and 0·75 ± 0·31. Overall, 14% and 6% judged PV and PF as being worse than dead. For both VAS and TTO values, significant differences were observed between all health states (P < 0·001). VAS utilities were rated significantly lower compared with TTO in each health state (P < 0·001). CONCLUSIONS: This is the first study that reports health utility values for PV and PF. Successful treatment of pemphigus might result in significant utility gain (0·24-0·41). These empirical findings with respect to three health states in pemphigus may serve as anchor points for further utility studies and cost-effectiveness analyses.
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