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. 2020 Sep/Oct;24(5):457-460.
doi: 10.1177/1203475420930222. Epub 2020 May 29.

Validation of the Three-Item Skindex-Mini Among Hidradenitis Suppurativa Patients With Diverse Racial Backgrounds

Lauren A V Orenstein  1 , Adaugo Amah  2 , Fiona M Shaw  2 , Chao Zhang  3 , Robert A Swerlick  1 , Suephy C Chen  1
Affiliations

Validation of the Three-Item Skindex-Mini Among Hidradenitis Suppurativa Patients With Diverse Racial Backgrounds

Lauren A V Orenstein et al. J Cutan Med Surg. 2020 Sep/Oct.

Abstract

Background: Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease that severely impairs patients' quality of life (QoL). Instruments such as the 10-item Dermatology Life Quality Index and 16-item Skindex-16 have been used to assess QoL in HS; however, it is unknown whether the shorter 3-item Skindex-mini can also provide an accurate assessment of skin-related QoL in patients with HS.

Objectives: The aim was to assess how well the Skindex-16 correlates with its shorter adaptation, the Skindex-mini, in capturing QoL among patients with HS.

Methods: This retrospective cross-sectional study included all HS patients seen in the HS Clinic at The Emory Clinic between January 1, 2019, and August 16, 2019. We compared the correlation between the symptom, emotion, and function domains of the Skindex-16 and Skindex-mini using Pearson correlation coefficients (CC). Secondary outcome measures included individual survey item analysis, ItchyQuant scores, and numeric rating scale of pain.

Results: We identified 108 encounters among 75 unique hidradenitis suppurativa patients (43 black/African American, 18 white, 5 Asian/Pacific Islander, 3 Latino, 4 Other, 2 unknown). Pearson CC between the Skindex-16 and Skindex-mini domain scores for all encounters were 0.770 (P < .001), 0.787 (P < .001), and 0.801 (P < .001) for the symptom, emotion, and function domains, respectively. The mean pain and ItchyQuant scores were 4.14 (SD 3.31) and 3.55 (SD 3.34), respectively.

Conclusions: The Skindex-mini correlated highly with the Skindex-16 in a racially diverse group of patients with HS. The Skindex-mini is a streamlined QoL instrument that could be practically implemented into routine clinical care among diverse patients presenting to dermatology.

Keywords: hidradenitis suppurativa; patient-reported outcomes; quality of life.

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