Cross-cultural validation of a short-form of the Vitiligo Impact Patient scale (VIPs) - 11/10/19
, Maggi Ahmed, MD c, Andrea Tovar-Garza, MD d, Carla Hajj, MD a, Maxine Whitton, MSc e, Amit Pandya, MD d, Saad Altalhab, MD f, Julien Seneschal, MD, PhD g, John Harris, MD, PhD c, Charles Taieb, MD, PhD hAbstract |
Background |
There is a lack of short-form questionnaires evaluating the burden of vitiligo according to skin phototype.
Objective |
To develop and validate a 12-item short-form of the Vitiligo Impact Patient scale (VIPs) that takes into account skin phototype.
Methods |
Multicenter, prospective, cross-sectional study conducted in France (Créteil and Bordeaux) and the US (Worcester, Massachusetts, and Dallas, Texas).
Results |
In total, 891 patients completed the questionnaire. Of these, 509 patients belonged to the French Development sample—313 with dark skin (DS) (phototypes IV to VI) and 196 with fair skin (FS) (phototypes I to III). The US validation sample comprised 382 patients—113 DS and 269 FS. There was a very high correlation between VIPs-FS and its 12-item short-form, VIPs-12-FS, in both the development and validation samples (respectively, rho = 0.96, P < .0001 and rho = 0.98, P < .0001). Similarly, the correlations between VIPs-DS and its short-form, VIPs-12-DS, in both the development and validation samples were very high (respectively, rho = 0.95, P < .0001 and rho = 0.96, P < .0001).
Limitations |
Responsiveness of the 12-item short-forms should be confirmed.
Conclusions |
These data enabled the development and validation of 12-item short-forms of the VIPs questionnaires for fair (VIPs-12-FS) and dark (VIPs-12-DS) skin.
Le texte complet de cet article est disponible en PDF.Key words : burden, patient reported outcomes, quality of life short-form, questionnaire, vitiligo, vitiligo impact scale
Abbreviations used : DS, FS, PRO, VIPs
Plan
| Funding sources: Supported in part by Pfizer, who had no role in the design and conduct of the study; collection, management, analysis, and interpretation of data; preparation, review, or approval of the manuscript; and the decision to submit the manuscript for publication. |
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| Conflicts of interest: None disclosed. |
Vol 81 - N° 5
P. 1107-1114 - novembre 2019 Retour au numéro
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