Abstract
BACKGROUND: Hidradenitis suppurativa (HS) is a painful chronic, recurrent inflammatory skin disease with great impact on health-related quality of life (HRQOL). Recently, Hidradenitis SuppuraTiva cORe outcomes set International Collaboration (HISTORIC) established HRQOL as a core domain set for HS clinical trials and developed the Hidradenitis Suppurativa Quality of Life (HiSQOL) as a validated outcome measurement instrument.
OBJECTIVES: To provide further convergent validity of HiSQOL by comparing it to Dermatology Life Quality Index (DLQI) and Pictorial Representation of Illness and Self Measure-Revised 2 (PRISM-R2).
METHODS: In this cross-sectional study, 103 participants completed HiSQOL, PRISM-R2 and DLQI. PRISM-R2 is an instrument designed to measure suffering and reports the two measures, Illness Perception Measure (IPM) and Self-Illness Separation (SIS). Correlation analyses were performed including a sub-analysis for a subgroup of patients with high scores in the HS-specific domains of HiSQOL.
RESULTS: A very strong correlation was found between HiSQOL and DLQI (ρ = 0.93, P < 2.2 × 10-16 , (95% CI: 0.89;0.95)), and moderately strong correlations were found between HiSQOL and SIS (ρ = -0.73, P < 2.2 × 10-16 , (95% CI: -0.81; -0.62)) and DLQI and SIS (ρ = -0.70, P < 2.2 × 10-16 , (95% CI: -0.79; -0.59)). IPM was positively associated with HiSQOL and DLQI and negatively with SIS.
CONCLUSIONS: HiSQOL is a valid measure of quality of life for HS patients, and we suggest that HiSQOL can be used as a measure of suffering as well.
Original language | English |
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Journal | Journal of the European Academy of Dermatology and Venereology : JEADV |
Volume | 35 |
Issue number | 7 |
Pages (from-to) | 1577-1581 |
Number of pages | 5 |
ISSN | 0926-9959 |
DOIs | |
Publication status | Published - Jul 2021 |
Externally published | Yes |
Keywords
- Cross-Sectional Studies
- Dermatitis
- Hidradenitis Suppurativa
- Humans
- Pain
- Quality of Life
- Severity of Illness Index